Kategori: JAVA-II

Java-2 2016 Hafta-11

12 Mayıs 201613 Mayıs 2016 tarihinde gönderilmiş caglar tarafından

import java.awt.*;
import java.sql.*;
import java.awt.event.*;
import javax.swing.*;


public class market implements ActionListener {

	JList[] jlist;
	DefaultListModel[] dlm;
	JComboBox jcb;
	JTextField jtf;
	JLabel jlab;
	
	public market() {
		
		JFrame jfrm = new JFrame("Market");
		jfrm.setSize(250,275);
		jfrm.setLayout(new FlowLayout());
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		JPanel jpn_main = new JPanel();
		jpn_main.setLayout(new GridLayout(1,3));
		jpn_main.setPreferredSize(new Dimension(250,275));
		
		JPanel[] jpn = new JPanel[3];
		jlist = new JList[3];
		dlm= new DefaultListModel[5]; // 3 tanesi jlist , +2 tanesi id ler icin (urunlerin id bilgisi, sepetin id bilgisi)
		
		for(int i =0;i<jlist.length;i++)
		{
			jpn[i]= new JPanel();
			dlm[i]= new DefaultListModel();
			jlist[i]=new JList(dlm[i]);
			JScrollPane jscp = new JScrollPane(jlist[i]);
			jscp.setPreferredSize(new Dimension(80,200));
			jpn[i].add(jscp);
			jpn_main.add(jpn[i]);
			
		}
		
		jcb = new JComboBox();
		jcb.setPreferredSize(new Dimension(80,25));
		jtf= new JTextField();
		jtf.setPreferredSize(new Dimension(80,25));
		jlab = new JLabel("Tutar: 0");
		jlab.setPreferredSize(new Dimension(80,25));
		
		jpn[0].add(jcb);
		jpn[1].add(jtf);
		jpn[2].add(jlab);
		
		JButton jbtn_ekle = new JButton("Ekle");
		jbtn_ekle.addActionListener(this);
		jbtn_ekle.setActionCommand("ekle");
		jbtn_ekle.setPreferredSize(new Dimension(80,25));
		JButton jbtn_sil = new JButton("Sil");
		jbtn_sil.addActionListener(this);
		jbtn_sil.setPreferredSize(new Dimension(80,25));

		jpn[0].add(jbtn_ekle);
		jpn[1].add(jbtn_sil);
	
		jfrm.add(jpn_main);
		combodoldur();
		listedoldur();
		jfrm.setVisible(true);
		
	}

	@Override
	public void actionPerformed(ActionEvent ae) {
		
		if(ae.getActionCommand().equals("ekle"))
		{
			// ekle
			
			Connection conn =baglan();
			try {
				
				String sql = "insert into sepet(urunid,miktar) values(?,?);";
				
				int secilen = jcb.getSelectedIndex();
				int miktar = Integer.parseInt(jtf.getText());
				
				
				if(secilen>0)
				{
					int urunid = (int) dlm[3].get(secilen-1); // urunler icin id listesi;
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setInt(1,urunid);
					ps.setInt(2,miktar);
					ps.executeUpdate();
					
					jcb.setSelectedIndex(0);
					jtf.setText("");
				
					listedoldur();
					
				}
				
			}
			catch(Exception ex)
			{
				System.out.println(ex);
			}
			
			
			
		}
		else
		{
			Connection conn =baglan();
			try {
				String sql = "delete from sepet where id=?;";
				int secilen = jlist[0].getSelectedIndex();
				if(secilen>-1)
				{
					int secilen_id = (int) dlm[4].get(secilen); // urunler icin id listesi;
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setInt(1,secilen_id);
					ps.executeUpdate();
					listedoldur();
					
				}
			}
			catch(Exception ex)
			{
				System.out.println(ex);
			}
			
		}


	}

	
	public void combodoldur()
	{
		
		try{
			
			Connection conn = baglan();
			if(conn!=null)
			{
				
				String sql = "select id,ad,fiyat from urunler";
				Statement st = conn.createStatement();
				ResultSet rs =st.executeQuery(sql);
				
				dlm[3] = new DefaultListModel(); // urunler tablosunun id bilgisini tutacak olan degisken
				
				jcb.addItem("Seçiniz");
				
				while(rs.next())
				{
					dlm[3].addElement(rs.getInt("id"));
					jcb.addItem(rs.getString("ad"));
					
				}
			}
		}
		catch(Exception ex)
		{
			System.out.println(ex);
		}
		
		
		
	}
	
	public void listedoldur()
	{
		try{
			
			Connection conn = baglan();
			if(conn!=null)
			{
				
				String sql = "select u.ad,u.fiyat*s.miktar as tutar,s.id," +
						"s.miktar from urunler u inner join sepet s on " +
						"s.urunid=u.id";
				Statement st = conn.createStatement();
				ResultSet rs =st.executeQuery(sql);
				
				dlm[0].clear();
				dlm[1].clear();
				dlm[2].clear();
				dlm[4] = new DefaultListModel(); // sepet id bilgisi tutan degisken silme isleminde kullanilacak
				
				int tutar=0;
				
				
				while(rs.next())
				{
					dlm[0].addElement(rs.getString("ad"));
					dlm[1].addElement(rs.getInt("miktar"));
					dlm[2].addElement(rs.getInt("tutar"));
					dlm[4].addElement(rs.getInt("id")); // s.id bilgisi
					
					tutar+=(int)rs.getInt("tutar");
					
				}
				
				jlab.setText("Tutar: "+tutar);
				
			}
		}
		catch(Exception ex)
		{
			System.out.println(ex);
		}
		
	}
	
	
	
	public Connection baglan()
	{
		Connection conn=null;
		try{
			Class.forName("org.sqlite.JDBC");
			conn=DriverManager.getConnection("jdbc:sqlite:market.db"); 
		}
		catch(Exception ex)
		{
			JOptionPane.showMessageDialog(null,"Bağlantı yapılamadı!","Hata",0);
		}
		return conn;	
	}
	
	
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new market();

	}

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

import java.awt.*;

import java.sql.*;

import java.awt.event.*;

import javax.swing.*;

public class market implements ActionListener {

JList[] jlist;

DefaultListModel[] dlm;

JComboBox jcb;

JTextField jtf;

JLabel jlab;

public market() {

JFrame jfrm = new JFrame("Market");

jfrm.setSize(250,275);

jfrm.setLayout(new FlowLayout());

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JPanel jpn_main = new JPanel();

jpn_main.setLayout(new GridLayout(1,3));

jpn_main.setPreferredSize(new Dimension(250,275));

JPanel[] jpn = new JPanel[3];

jlist = new JList[3];

dlm= new DefaultListModel[5]; // 3 tanesi jlist , +2 tanesi id ler icin (urunlerin id bilgisi, sepetin id bilgisi)

for(int i =0;i<jlist.length;i++)

{

jpn[i]= new JPanel();

dlm[i]= new DefaultListModel();

jlist[i]=new JList(dlm[i]);

JScrollPane jscp = new JScrollPane(jlist[i]);

jscp.setPreferredSize(new Dimension(80,200));

jpn[i].add(jscp);

jpn_main.add(jpn[i]);

}

jcb = new JComboBox();

jcb.setPreferredSize(new Dimension(80,25));

jtf= new JTextField();

jtf.setPreferredSize(new Dimension(80,25));

jlab = new JLabel("Tutar: 0");

jlab.setPreferredSize(new Dimension(80,25));

jpn[0].add(jcb);

jpn[1].add(jtf);

jpn[2].add(jlab);

JButton jbtn_ekle = new JButton("Ekle");

jbtn_ekle.addActionListener(this);

jbtn_ekle.setActionCommand("ekle");

jbtn_ekle.setPreferredSize(new Dimension(80,25));

JButton jbtn_sil = new JButton("Sil");

jbtn_sil.addActionListener(this);

jbtn_sil.setPreferredSize(new Dimension(80,25));

jpn[0].add(jbtn_ekle);

jpn[1].add(jbtn_sil);

jfrm.add(jpn_main);

combodoldur();

listedoldur();

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent ae) {

if(ae.getActionCommand().equals("ekle"))

{

// ekle

Connection conn =baglan();

try {

String sql = "insert into sepet(urunid,miktar) values(?,?);";

int secilen = jcb.getSelectedIndex();

int miktar = Integer.parseInt(jtf.getText());

if(secilen>0)

{

int urunid = (int) dlm[3].get(secilen-1); // urunler icin id listesi;

PreparedStatement ps = conn.prepareStatement(sql);

ps.setInt(1,urunid);

ps.setInt(2,miktar);

ps.executeUpdate();

jcb.setSelectedIndex(0);

jtf.setText("");

listedoldur();

}

catch(Exception ex)

{

System.out.println(ex);

}

else

{

Connection conn =baglan();

try {

String sql = "delete from sepet where id=?;";

int secilen = jlist[0].getSelectedIndex();

if(secilen>-1)

{

int secilen_id = (int) dlm[4].get(secilen); // urunler icin id listesi;

PreparedStatement ps = conn.prepareStatement(sql);

ps.setInt(1,secilen_id);

ps.executeUpdate();

listedoldur();

}

catch(Exception ex)

{

System.out.println(ex);

}

public void combodoldur()

{

try{

Connection conn = baglan();

if(conn!=null)

{

String sql = "select id,ad,fiyat from urunler";

Statement st = conn.createStatement();

ResultSet rs =st.executeQuery(sql);

dlm[3] = new DefaultListModel(); // urunler tablosunun id bilgisini tutacak olan degisken

jcb.addItem("Seçiniz");

while(rs.next())

{

dlm[3].addElement(rs.getInt("id"));

jcb.addItem(rs.getString("ad"));

}

catch(Exception ex)

{

System.out.println(ex);

}

public void listedoldur()

{

try{

Connection conn = baglan();

if(conn!=null)

{

String sql = "select u.ad,u.fiyat*s.miktar as tutar,s.id," +

"s.miktar from urunler u inner join sepet s on " +

"s.urunid=u.id";

Statement st = conn.createStatement();

ResultSet rs =st.executeQuery(sql);

dlm[0].clear();

dlm[1].clear();

dlm[2].clear();

dlm[4] = new DefaultListModel(); // sepet id bilgisi tutan degisken silme isleminde kullanilacak

int tutar=0;

while(rs.next())

{

dlm[0].addElement(rs.getString("ad"));

dlm[1].addElement(rs.getInt("miktar"));

dlm[2].addElement(rs.getInt("tutar"));

dlm[4].addElement(rs.getInt("id")); // s.id bilgisi

tutar+=(int)rs.getInt("tutar");

}

jlab.setText("Tutar: "+tutar);

}

catch(Exception ex)

{

System.out.println(ex);

}

public Connection baglan()

{

Connection conn=null;

try{

Class.forName("org.sqlite.JDBC");

conn=DriverManager.getConnection("jdbc:sqlite:market.db");

}

catch(Exception ex)

{

JOptionPane.showMessageDialog(null,"Bağlantı yapılamadı!","Hata",0);

}

return conn;

}

/**

* @param args

public static void main(String[] args) {

new market();

}

Java-2 2016 Hafta-11 Uygulamaları

Okumaya devam et

Java-2 2016 Hafta-10

9 Mayıs 2016 tarihinde gönderilmiş caglar tarafından

import java.awt.*;
import java.awt.event.*;
import java.sql.*;
import javax.swing.*;


public class ornek1 implements ActionListener {

	JList jl1,jl2;
	DefaultListModel dlm1,dlm2,dlm_id;
	JTextField jtf_isim,jtf_telno;
	public ornek1() {
		JFrame jfrm = new JFrame("Personel Bilgileri");
		jfrm.setLayout(new FlowLayout());
		jfrm.setSize(150,290);
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		JPanel jpn_main = new JPanel();
		jpn_main.setPreferredSize(new Dimension(150,290));
		jpn_main.setLayout(new GridLayout(1,2));
		
		jfrm.add(jpn_main);
		
		dlm_id= new DefaultListModel();
		
		JPanel jpn1 = new JPanel();
		dlm1= new DefaultListModel();
		jl1= new JList(dlm1);
		JScrollPane jscp1= new JScrollPane(jl1);
		jscp1.setPreferredSize(new Dimension(70,200));
		jpn1.add(jscp1);
		jtf_isim = new JTextField();
		jtf_isim.setPreferredSize(new Dimension(70,30));
		JButton jbtn1= new JButton("Ekle");
		jbtn1.addActionListener(this);
		jbtn1.setActionCommand("ekle");
		jbtn1.setPreferredSize(new Dimension(70,30));
		jpn1.add(jtf_isim);
		jpn1.add(jbtn1);
		
		JPanel jpn2 = new JPanel();
		dlm2= new DefaultListModel();
		jl2= new JList(dlm2);
		JScrollPane jscp2= new JScrollPane(jl2);
		jscp2.setPreferredSize(new Dimension(70,200));
		jpn2.add(jscp2);
		jtf_telno = new JTextField();
		jtf_telno.setPreferredSize(new Dimension(70,30));
		JButton jbtn2= new JButton("Sil");
		jbtn2.addActionListener(this);
		jbtn2.setPreferredSize(new Dimension(70,30));
		jpn2.add(jtf_telno);
		jpn2.add(jbtn2);	
		
		jpn_main.add(jpn1);
		jpn_main.add(jpn2);
		
		listedoldur();
		
		jfrm.setVisible(true);
	}

	public void listedoldur()
	{
		try{
		Connection conn = baglan();
		
		if(conn!=null)
		{
			dlm_id.clear();
			dlm1.clear();
			dlm2.clear();
			String sql="select id, isim, telno from personel;";
			Statement st = conn.createStatement();
			ResultSet rs = st.executeQuery(sql);
			while(rs.next()) // kayit varsa
			{
				dlm_id.addElement(rs.getInt("id"));
				dlm1.addElement(rs.getString("isim"));
				dlm2.addElement(rs.getString("telno"));
			}
		}
		
		
		
		}catch(Exception ex)
		{
			System.out.println(ex);
			
		}
		
	}
	
	@Override
	public void actionPerformed(ActionEvent ae) {

		Connection conn = baglan();
		
		if(ae.getActionCommand().equals("ekle"))
		{
			try{
				
				if(jtf_isim.getText().length()>0 && 
						jtf_telno.getText().length()>0)
				{
					String sql = "insert into personel(isim,telno) values(?,?)";
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setString(1, jtf_isim.getText());
					ps.setString(2, jtf_telno.getText());
					ps.executeUpdate();
					
					jtf_isim.setText("");
					jtf_telno.setText("");
					listedoldur();
				}
			}
			catch(Exception ex)
			{
				System.out.println(ex);
				
			}
		}
		else
		{
			try{
				
				int secilen = jl1.getSelectedIndex();
				
				if(secilen>-1)
				{
					String sql = "delete from personel where id=?;";
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setInt(1, (int)dlm_id.get(secilen));
					ps.executeUpdate();
					listedoldur();
				}
				
			}
			catch(Exception ex)
			{
				System.out.println(ex);	
			}
			
		}
		

	}
	
	public Connection baglan()
	{
	Connection conn=null;
	try{
		Class.forName("org.sqlite.JDBC");
		conn=DriverManager.getConnection("jdbc:sqlite:ornek1.db"); 
	}
	catch(Exception ex)
	{
		JOptionPane.showMessageDialog(null,"Bağlantı yapılamadı!","Hata",0);
	}
	return conn;	
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new ornek1();

	}

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

import java.awt.*;

import java.awt.event.*;

import java.sql.*;

import javax.swing.*;

public class ornek1 implements ActionListener {

JList jl1,jl2;

DefaultListModel dlm1,dlm2,dlm_id;

JTextField jtf_isim,jtf_telno;

public ornek1() {

JFrame jfrm = new JFrame("Personel Bilgileri");

jfrm.setLayout(new FlowLayout());

jfrm.setSize(150,290);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JPanel jpn_main = new JPanel();

jpn_main.setPreferredSize(new Dimension(150,290));

jpn_main.setLayout(new GridLayout(1,2));

jfrm.add(jpn_main);

dlm_id= new DefaultListModel();

JPanel jpn1 = new JPanel();

dlm1= new DefaultListModel();

jl1= new JList(dlm1);

JScrollPane jscp1= new JScrollPane(jl1);

jscp1.setPreferredSize(new Dimension(70,200));

jpn1.add(jscp1);

jtf_isim = new JTextField();

jtf_isim.setPreferredSize(new Dimension(70,30));

JButton jbtn1= new JButton("Ekle");

jbtn1.addActionListener(this);

jbtn1.setActionCommand("ekle");

jbtn1.setPreferredSize(new Dimension(70,30));

jpn1.add(jtf_isim);

jpn1.add(jbtn1);

JPanel jpn2 = new JPanel();

dlm2= new DefaultListModel();

jl2= new JList(dlm2);

JScrollPane jscp2= new JScrollPane(jl2);

jscp2.setPreferredSize(new Dimension(70,200));

jpn2.add(jscp2);

jtf_telno = new JTextField();

jtf_telno.setPreferredSize(new Dimension(70,30));

JButton jbtn2= new JButton("Sil");

jbtn2.addActionListener(this);

jbtn2.setPreferredSize(new Dimension(70,30));

jpn2.add(jtf_telno);

jpn2.add(jbtn2);

jpn_main.add(jpn1);

jpn_main.add(jpn2);

listedoldur();

jfrm.setVisible(true);

}

public void listedoldur()

{

try{

Connection conn = baglan();

if(conn!=null)

{

dlm_id.clear();

dlm1.clear();

dlm2.clear();

String sql="select id, isim, telno from personel;";

Statement st = conn.createStatement();

ResultSet rs = st.executeQuery(sql);

while(rs.next()) // kayit varsa

{

dlm_id.addElement(rs.getInt("id"));

dlm1.addElement(rs.getString("isim"));

dlm2.addElement(rs.getString("telno"));

}

}catch(Exception ex)

{

System.out.println(ex);

}

@Override

public void actionPerformed(ActionEvent ae) {

Connection conn = baglan();

if(ae.getActionCommand().equals("ekle"))

{

try{

if(jtf_isim.getText().length()>0 &&

jtf_telno.getText().length()>0)

{

String sql = "insert into personel(isim,telno) values(?,?)";

PreparedStatement ps = conn.prepareStatement(sql);

ps.setString(1, jtf_isim.getText());

ps.setString(2, jtf_telno.getText());

ps.executeUpdate();

jtf_isim.setText("");

jtf_telno.setText("");

listedoldur();

}

catch(Exception ex)

{

System.out.println(ex);

}

else

{

try{

int secilen = jl1.getSelectedIndex();

if(secilen>-1)

{

String sql = "delete from personel where id=?;";

PreparedStatement ps = conn.prepareStatement(sql);

ps.setInt(1, (int)dlm_id.get(secilen));

ps.executeUpdate();

listedoldur();

}

catch(Exception ex)

{

System.out.println(ex);

}

public Connection baglan()

{

Connection conn=null;

try{

Class.forName("org.sqlite.JDBC");

conn=DriverManager.getConnection("jdbc:sqlite:ornek1.db");

}

catch(Exception ex)

{

JOptionPane.showMessageDialog(null,"Bağlantı yapılamadı!","Hata",0);

}

return conn;

}

/**

* @param args

public static void main(String[] args) {

new ornek1();

}

Java-2 2016 Hafta-10

Okumaya devam et

Java-2 2016 Hafta-8 Örnek-2

31 Mart 2016 tarihinde gönderilmiş caglar tarafından

import java.awt.event.*;
import java.awt.*;
import javax.swing.*;

public class tasarim implements ActionListener {

	JLabel jlab;
	JRadioButton[] jrb;
	public tasarim() {
		
		JFrame jfrm = new JFrame("Tasarim");
		jfrm.setSize(250,150);
		jfrm.setLayout(new FlowLayout());
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	
		JPanel jpn_ana = new JPanel();
		jpn_ana.setPreferredSize(new Dimension(245,145));
		
		JPanel jpn_soru= new JPanel();
		jpn_soru.setLayout(new FlowLayout(FlowLayout.LEFT));
		jpn_soru.setPreferredSize(new Dimension(240,35));
		jlab= new JLabel("Soru1:....");
		jpn_soru.add(jlab);
		
		
		JPanel jpn_secenek= new JPanel();
		jpn_secenek.setLayout(new GridLayout(2,2));
		jpn_secenek.setPreferredSize(new Dimension(240,50));
		
		ButtonGroup bg = new ButtonGroup();
		jrb= new JRadioButton[4];
		jrb[0]= new JRadioButton("A).....");
		jrb[0].setSelected(true);
		jrb[1]= new JRadioButton("B).....");
		jrb[2]= new JRadioButton("C).....");
		jrb[3]= new JRadioButton("D).....");
		bg.add(jrb[0]);
		bg.add(jrb[1]);
		bg.add(jrb[2]);
		bg.add(jrb[3]);
		
		jpn_secenek.add(jrb[0]);
		jpn_secenek.add(jrb[1]);
		jpn_secenek.add(jrb[2]);
		jpn_secenek.add(jrb[3]);
		
		JPanel jpn_buton= new JPanel();
		jpn_buton.setLayout(new GridLayout(1,2));
		jpn_buton.setPreferredSize(new Dimension(240,35));
		
		JPanel jpn_b1= new JPanel();
		jpn_b1.setLayout(new FlowLayout(FlowLayout.LEFT));
		JPanel jpn_b2= new JPanel();
		jpn_b2.setLayout(new FlowLayout(FlowLayout.RIGHT));
		
		JButton jbtn1= new JButton("Önceki");
		JButton jbtn2= new JButton("Sonraki");
		jpn_b1.add(jbtn1);
		jpn_b2.add(jbtn2);
		
		
		jpn_buton.add(jpn_b1);
		jpn_buton.add(jpn_b2);
		
		jpn_ana.add(jpn_soru);
		jpn_ana.add(jpn_secenek);
		jpn_ana.add(jpn_buton);
				
		jfrm.add(jpn_ana);
		jfrm.setVisible(true);
	}
	@Override
	public void actionPerformed(ActionEvent arg0) {
		
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new tasarim();

	}

}

import java.awt.event.*;

import java.awt.*;

import javax.swing.*;

public class tasarim implements ActionListener {

JLabel jlab;

JRadioButton[] jrb;

public tasarim() {

JFrame jfrm = new JFrame("Tasarim");

jfrm.setSize(250,150);

jfrm.setLayout(new FlowLayout());

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JPanel jpn_ana = new JPanel();

jpn_ana.setPreferredSize(new Dimension(245,145));

JPanel jpn_soru= new JPanel();

jpn_soru.setLayout(new FlowLayout(FlowLayout.LEFT));

jpn_soru.setPreferredSize(new Dimension(240,35));

jlab= new JLabel("Soru1:....");

jpn_soru.add(jlab);

JPanel jpn_secenek= new JPanel();

jpn_secenek.setLayout(new GridLayout(2,2));

jpn_secenek.setPreferredSize(new Dimension(240,50));

ButtonGroup bg = new ButtonGroup();

jrb= new JRadioButton[4];

jrb[0]= new JRadioButton("A).....");

jrb[0].setSelected(true);

jrb[1]= new JRadioButton("B).....");

jrb[2]= new JRadioButton("C).....");

jrb[3]= new JRadioButton("D).....");

bg.add(jrb[0]);

bg.add(jrb[1]);

bg.add(jrb[2]);

bg.add(jrb[3]);

jpn_secenek.add(jrb[0]);

jpn_secenek.add(jrb[1]);

jpn_secenek.add(jrb[2]);

jpn_secenek.add(jrb[3]);

JPanel jpn_buton= new JPanel();

jpn_buton.setLayout(new GridLayout(1,2));

jpn_buton.setPreferredSize(new Dimension(240,35));

JPanel jpn_b1= new JPanel();

jpn_b1.setLayout(new FlowLayout(FlowLayout.LEFT));

JPanel jpn_b2= new JPanel();

jpn_b2.setLayout(new FlowLayout(FlowLayout.RIGHT));

JButton jbtn1= new JButton("Önceki");

JButton jbtn2= new JButton("Sonraki");

jpn_b1.add(jbtn1);

jpn_b2.add(jbtn2);

jpn_buton.add(jpn_b1);

jpn_buton.add(jpn_b2);

jpn_ana.add(jpn_soru);

jpn_ana.add(jpn_secenek);

jpn_ana.add(jpn_buton);

jfrm.add(jpn_ana);

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent arg0) {

}

/**

* @param args

public static void main(String[] args) {

new tasarim();

}

Okumaya devam et

Java-2 2016 Hafta-8 Örnek-1

31 Mart 2016 tarihinde gönderilmiş caglar tarafından

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class gelirvergisi implements ActionListener {

	JList[] jl;
	DefaultListModel[] dlm;
	JComboBox jcb;
	JTextField jtf_gelirtop,jtf_yenigelir;
	JRadioButton jrb_ocak,jrb_temmuz;
	
	public gelirvergisi() {
		
		JFrame jfrm = new JFrame("Gelir Vergisi - 2016");
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new GridLayout(1,5));
		jfrm.setSize(500, 250);
		
		JPanel[] jpn = new JPanel[5];
		jl= new JList[5];
		dlm=new DefaultListModel[5];
		String[] baslik={"İsim","Gelir Top.","Yeni Gelir","Dönem","Vergi"};
		
		for(int i =0; i<jpn.length;i++)
		{
			jpn[i]= new JPanel();
			jpn[i].setPreferredSize(new Dimension(95, 295));
			dlm[i]= new DefaultListModel();
			jl[i]=new JList(dlm[i]);
			JScrollPane jscp= new JScrollPane(jl[i]);
			jscp.setPreferredSize(new Dimension(90,160));
			JLabel jlab = new JLabel(baslik[i]);
			jpn[i].add(jlab);
			jpn[i].add(jscp); // jlist panele eklendi
			
			jfrm.add(jpn[i]);
		}
		
		//1. sutun eklemeleri
		String[] isimler ={"Seçiniz","Ahmet","Mustafa","Metin","Ayse","Fatma"};
		jcb= new JComboBox(isimler);
		jcb.setPreferredSize(new Dimension(90,25));
		jpn[0].add(jcb);
		JButton jbtn1= new JButton("Ekle");
		jbtn1.addActionListener(this);
		jbtn1.setActionCommand("ekle"); // buton etiketi
		jbtn1.setPreferredSize(new Dimension(90,25));
		jpn[0].add(jbtn1);
		
		//2. sutun
		jtf_gelirtop= new JTextField();
		jtf_gelirtop.setPreferredSize(new Dimension(90,25));
		jpn[1].add(jtf_gelirtop);
		JButton jbtn2= new JButton("Sil");
		jbtn2.addActionListener(this);
		jbtn2.setPreferredSize(new Dimension(90,25));
		jpn[1].add(jbtn2);
		
		//3.sutun
		jtf_yenigelir= new JTextField();
		jtf_yenigelir.setPreferredSize(new Dimension(90,25));
		jpn[2].add(jtf_yenigelir);
		
		//4. sutun
		ButtonGroup bg = new ButtonGroup();
		jrb_ocak = new JRadioButton("Ocak");
		jrb_ocak.setSelected(true);
		jrb_temmuz = new JRadioButton("Temmuz");
		bg.add(jrb_ocak);
		bg.add(jrb_temmuz);
		JPanel jpn4_1 = new JPanel();
		JPanel jpn4_2 = new JPanel();
		jpn4_1.setLayout(new FlowLayout(FlowLayout.LEFT));
		jpn4_2.setLayout(new FlowLayout(FlowLayout.LEFT));
		jpn4_1.setPreferredSize(new Dimension(90,25));
		jpn4_2.setPreferredSize(new Dimension(90,25));
		jpn4_1.add(jrb_ocak);
		jpn4_2.add(jrb_temmuz);
		jpn[3].add(jpn4_1);
		jpn[3].add(jpn4_2);
		jfrm.setVisible(true);
	}
	@Override
	public void actionPerformed(ActionEvent ae) {
		if(ae.getActionCommand().equals("ekle"))
		{
			// ekle
			int secilen_isim = jcb.getSelectedIndex();
			int donem=0;
			if(jrb_temmuz.isSelected())
				donem=1;
			
			double mevcutgelir,yenigelir;
			try{
				if(secilen_isim>0 && jtf_gelirtop.getText().length()>0 && 
						jtf_yenigelir.getText().length()>0 ){
					
				mevcutgelir=Double.parseDouble(jtf_gelirtop.getText());
				yenigelir=Double.parseDouble(jtf_yenigelir.getText());
				
				String[] donemler={"Ocak","Temmuz"};
				double vergi=vergihesapla(mevcutgelir, yenigelir, donem);
				
				dlm[0].addElement(jcb.getSelectedItem()); // isim
				dlm[1].addElement(mevcutgelir); // gelir top.
				dlm[2].addElement(yenigelir); // yeni gelir
				dlm[3].addElement(donemler[donem]); // donem
				dlm[4].addElement(vergi); // vergi
				
				jcb.setSelectedIndex(0);
				jtf_gelirtop.setText("");
				jtf_yenigelir.setText("");
				jrb_ocak.setSelected(true);
				}	
			}catch(Exception ex)
			{
				
			}
		}
		else
		{
			int secilen = jl[0].getSelectedIndex();
			if(secilen>-1)
			{
				for(int i=0;i<dlm.length;i++)
				{
					dlm[i].remove(secilen);
				}	
			}	
		}
	}

	private double vergihesapla(double mevcutgelir,double yenigelir, int donem)
	{
		double toplamvergi=0;
		double[] oranlar={0.15,0.2,0.27,0.35};
		double[] ocak={12600,30000,110000};
		double[] temmuz={13000,31000,120000}; // henuz belirlenmedi degerler farazi
		double[] donemsiniri; // kullanilacak doneme ait sinirlar
		
		donemsiniri=ocak;
		if(donem==1)
			donemsiniri=temmuz;
		
		double anapara=mevcutgelir;
		double kalan = yenigelir;
		
		do{
		
		int onceki=oranbul(anapara,donemsiniri);
		int sonraki=oranbul(anapara+kalan,donemsiniri);
		
		
		if(onceki==sonraki)
		{	// durum1 : tamamini vergilendir
			toplamvergi+=kalan*oranlar[onceki];
			kalan=0;
		}
		else
		{ 
			// durum2 : sinir ustunde devam etmeli 
			double vergilendirilecek=donemsiniri[onceki]-anapara;
			toplamvergi+=vergilendirilecek*oranlar[onceki];
			anapara+=vergilendirilecek;
			kalan-=vergilendirilecek;
		}
		
		
		
		}while(kalan>0);
		
		
		return toplamvergi;
	}
	
	private int oranbul(double gelir,double[] sinirlar)
	{
		for(int i=0;i<sinirlar.length;i++)
		{
			if(gelir < sinirlar[i])
				return i;
		}
		return sinirlar.length;
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new gelirvergisi();
	}

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class gelirvergisi implements ActionListener {

JList[] jl;

DefaultListModel[] dlm;

JComboBox jcb;

JTextField jtf_gelirtop,jtf_yenigelir;

JRadioButton jrb_ocak,jrb_temmuz;

public gelirvergisi() {

JFrame jfrm = new JFrame("Gelir Vergisi - 2016");

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new GridLayout(1,5));

jfrm.setSize(500, 250);

JPanel[] jpn = new JPanel[5];

jl= new JList[5];

dlm=new DefaultListModel[5];

String[] baslik={"İsim","Gelir Top.","Yeni Gelir","Dönem","Vergi"};

for(int i =0; i<jpn.length;i++)

{

jpn[i]= new JPanel();

jpn[i].setPreferredSize(new Dimension(95, 295));

dlm[i]= new DefaultListModel();

jl[i]=new JList(dlm[i]);

JScrollPane jscp= new JScrollPane(jl[i]);

jscp.setPreferredSize(new Dimension(90,160));

JLabel jlab = new JLabel(baslik[i]);

jpn[i].add(jlab);

jpn[i].add(jscp); // jlist panele eklendi

jfrm.add(jpn[i]);

}

//1. sutun eklemeleri

String[] isimler ={"Seçiniz","Ahmet","Mustafa","Metin","Ayse","Fatma"};

jcb= new JComboBox(isimler);

jcb.setPreferredSize(new Dimension(90,25));

jpn[0].add(jcb);

JButton jbtn1= new JButton("Ekle");

jbtn1.addActionListener(this);

jbtn1.setActionCommand("ekle"); // buton etiketi

jbtn1.setPreferredSize(new Dimension(90,25));

jpn[0].add(jbtn1);

//2. sutun

jtf_gelirtop= new JTextField();

jtf_gelirtop.setPreferredSize(new Dimension(90,25));

jpn[1].add(jtf_gelirtop);

JButton jbtn2= new JButton("Sil");

jbtn2.addActionListener(this);

jbtn2.setPreferredSize(new Dimension(90,25));

jpn[1].add(jbtn2);

//3.sutun

jtf_yenigelir= new JTextField();

jtf_yenigelir.setPreferredSize(new Dimension(90,25));

jpn[2].add(jtf_yenigelir);

//4. sutun

ButtonGroup bg = new ButtonGroup();

jrb_ocak = new JRadioButton("Ocak");

jrb_ocak.setSelected(true);

jrb_temmuz = new JRadioButton("Temmuz");

bg.add(jrb_ocak);

bg.add(jrb_temmuz);

JPanel jpn4_1 = new JPanel();

JPanel jpn4_2 = new JPanel();

jpn4_1.setLayout(new FlowLayout(FlowLayout.LEFT));

jpn4_2.setLayout(new FlowLayout(FlowLayout.LEFT));

jpn4_1.setPreferredSize(new Dimension(90,25));

jpn4_2.setPreferredSize(new Dimension(90,25));

jpn4_1.add(jrb_ocak);

jpn4_2.add(jrb_temmuz);

jpn[3].add(jpn4_1);

jpn[3].add(jpn4_2);

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent ae) {

if(ae.getActionCommand().equals("ekle"))

{

// ekle

int secilen_isim = jcb.getSelectedIndex();

int donem=0;

if(jrb_temmuz.isSelected())

donem=1;

double mevcutgelir,yenigelir;

try{

if(secilen_isim>0 && jtf_gelirtop.getText().length()>0 &&

jtf_yenigelir.getText().length()>0 ){

mevcutgelir=Double.parseDouble(jtf_gelirtop.getText());

yenigelir=Double.parseDouble(jtf_yenigelir.getText());

String[] donemler={"Ocak","Temmuz"};

double vergi=vergihesapla(mevcutgelir, yenigelir, donem);

dlm[0].addElement(jcb.getSelectedItem()); // isim

dlm[1].addElement(mevcutgelir); // gelir top.

dlm[2].addElement(yenigelir); // yeni gelir

dlm[3].addElement(donemler[donem]); // donem

dlm[4].addElement(vergi); // vergi

jcb.setSelectedIndex(0);

jtf_gelirtop.setText("");

jtf_yenigelir.setText("");

jrb_ocak.setSelected(true);

}

}catch(Exception ex)

{

}

else

{

int secilen = jl[0].getSelectedIndex();

if(secilen>-1)

{

for(int i=0;i<dlm.length;i++)

{

dlm[i].remove(secilen);

}

private double vergihesapla(double mevcutgelir,double yenigelir, int donem)

{

double toplamvergi=0;

double[] oranlar={0.15,0.2,0.27,0.35};

double[] ocak={12600,30000,110000};

double[] temmuz={13000,31000,120000}; // henuz belirlenmedi degerler farazi

double[] donemsiniri; // kullanilacak doneme ait sinirlar

donemsiniri=ocak;

if(donem==1)

donemsiniri=temmuz;

double anapara=mevcutgelir;

double kalan = yenigelir;

do{

int onceki=oranbul(anapara,donemsiniri);

int sonraki=oranbul(anapara+kalan,donemsiniri);

if(onceki==sonraki)

{ // durum1 : tamamini vergilendir

toplamvergi+=kalan*oranlar[onceki];

kalan=0;

}

else

{

// durum2 : sinir ustunde devam etmeli

double vergilendirilecek=donemsiniri[onceki]-anapara;

toplamvergi+=vergilendirilecek*oranlar[onceki];

anapara+=vergilendirilecek;

kalan-=vergilendirilecek;

}

}while(kalan>0);

return toplamvergi;

}

private int oranbul(double gelir,double[] sinirlar)

{

for(int i=0;i<sinirlar.length;i++)

{

if(gelir < sinirlar[i])

return i;

}

return sinirlar.length;

}

/**

* @param args

public static void main(String[] args) {

new gelirvergisi();

}

Okumaya devam et

Java-2 2016 Hafta-7 Örnek-1

31 Mart 2016 tarihinde gönderilmiş caglar tarafından

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class jlistornek implements ActionListener {

	JList jlist;
	DefaultListModel dlm;
	JTextField jtf; 
	JLabel jlab_say;
	public jlistornek() {
		JFrame jfrm = new JFrame("List Ornegi");
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setSize(150,300);
		jfrm.setLayout(new FlowLayout());
		
	
		JPanel jpn1 = new JPanel();
		jpn1.setPreferredSize(new Dimension(130,200));
		
		JPanel jpn2 = new JPanel();
		jpn2.setLayout(new GridLayout(3,1));
		jpn2.setPreferredSize(new Dimension(130,100));
		JPanel jpn2_1 = new JPanel();
		JPanel jpn2_2 = new JPanel();
		JPanel jpn2_3 = new JPanel();
		jpn2.add(jpn2_1);
		jpn2.add(jpn2_2);
		jpn2.add(jpn2_3);
		
		jfrm.add(jpn1);
		jfrm.add(jpn2);

		
		dlm = new DefaultListModel();
		jlist = new JList(dlm);
		JScrollPane jsp = new JScrollPane(jlist);
		jsp.setPreferredSize(new Dimension(130,190));
		jpn1.add(jsp);

		
		
		jtf = new JTextField(10);
		jpn2_1.add(jtf);
		
		JButton jbtn_ekle = new JButton("Ekle");
		jbtn_ekle.addActionListener(this);
		jbtn_ekle.setActionCommand("ekle");
		JButton jbtn_sil = new JButton("Sil");
		jbtn_sil.addActionListener(this);
	
		jpn2_2.add(jbtn_ekle);
		jpn2_2.add(jbtn_sil);
		
		jlab_say = new JLabel("Eleman sayisi: 0");
		jpn2_3.add(jlab_say);
				
		//jfrm.pack();
		jfrm.setVisible(true);
	}

	@Override
	public void actionPerformed(ActionEvent ae) {
		
		if(ae.getActionCommand().equals("ekle"))
		{
			// ekle
			if(jtf.getText().length()>0)
			{
				dlm.addElement(jtf.getText());
				jtf.setText("");
			}	
		}
		else
		{
			int secilen=jlist.getSelectedIndex();
			if(secilen>-1)
				dlm.remove(secilen);
		}
		
		say();
		

	}
	
	private void say()
	{
		int say=dlm.getSize();
		jlab_say.setText("Eleman sayisi: "+say);
		
		
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new jlistornek();

	}

}

100

101

102

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class jlistornek implements ActionListener {

JList jlist;

DefaultListModel dlm;

JTextField jtf;

JLabel jlab_say;

public jlistornek() {

JFrame jfrm = new JFrame("List Ornegi");

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setSize(150,300);

jfrm.setLayout(new FlowLayout());

JPanel jpn1 = new JPanel();

jpn1.setPreferredSize(new Dimension(130,200));

JPanel jpn2 = new JPanel();

jpn2.setLayout(new GridLayout(3,1));

jpn2.setPreferredSize(new Dimension(130,100));

JPanel jpn2_1 = new JPanel();

JPanel jpn2_2 = new JPanel();

JPanel jpn2_3 = new JPanel();

jpn2.add(jpn2_1);

jpn2.add(jpn2_2);

jpn2.add(jpn2_3);

jfrm.add(jpn1);

jfrm.add(jpn2);

dlm = new DefaultListModel();

jlist = new JList(dlm);

JScrollPane jsp = new JScrollPane(jlist);

jsp.setPreferredSize(new Dimension(130,190));

jpn1.add(jsp);

jtf = new JTextField(10);

jpn2_1.add(jtf);

JButton jbtn_ekle = new JButton("Ekle");

jbtn_ekle.addActionListener(this);

jbtn_ekle.setActionCommand("ekle");

JButton jbtn_sil = new JButton("Sil");

jbtn_sil.addActionListener(this);

jpn2_2.add(jbtn_ekle);

jpn2_2.add(jbtn_sil);

jlab_say = new JLabel("Eleman sayisi: 0");

jpn2_3.add(jlab_say);

//jfrm.pack();

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent ae) {

if(ae.getActionCommand().equals("ekle"))

{

// ekle

if(jtf.getText().length()>0)

{

dlm.addElement(jtf.getText());

jtf.setText("");

}

else

{

int secilen=jlist.getSelectedIndex();

if(secilen>-1)

dlm.remove(secilen);

}

say();

}

private void say()

{

int say=dlm.getSize();

jlab_say.setText("Eleman sayisi: "+say);

}

/**

* @param args

public static void main(String[] args) {

new jlistornek();

}

Okumaya devam et

Java-2 2016 Hafta-6 Örnek-2

17 Mart 2016 tarihinde gönderilmiş caglar tarafından

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;


public class formuyg implements ActionListener {

	JTextField jtf_adsoyad, jtf_tel;
	JRadioButton jrb_m,jrb_f;
	JComboBox jcb;
	public formuyg() {

		JFrame jfrm = new JFrame();
		jfrm.setLayout(new GridLayout(5,2));
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		JPanel[] jpn = new JPanel[10];
		
		jpn[0]=new JPanel();
		JLabel jlab1= new JLabel("Ad Soyad:");
		jpn[0].add(jlab1);
		
		jpn[1]=new JPanel();
		jtf_adsoyad = new JTextField(10);
		jpn[1].add(jtf_adsoyad);
		
		jpn[2]=new JPanel();
		jlab1= new JLabel("Tel No:");
		jpn[2].add(jlab1);
		
		jpn[3]=new JPanel();
		jtf_tel = new JTextField(10);
		jpn[3].add(jtf_tel);
		
		jpn[4]=new JPanel();
		jlab1= new JLabel("Cinsiyet:");
		jpn[4].add(jlab1);
		
		jpn[5]=new JPanel();
		jrb_m= new JRadioButton("Bay",true);
		jrb_f= new JRadioButton("Bayan");
		ButtonGroup bg = new ButtonGroup(); // grup elemanlarindan sadece biri secilebilsin
		bg.add(jrb_m);
		bg.add(jrb_f);
		jpn[5].add(jrb_m);
		jpn[5].add(jrb_f);
		
		jpn[6]=new JPanel();
		jlab1= new JLabel("Eğitim Durumu:");
		jpn[6].add(jlab1);
		
		String[] icerik={"Yok","İlköğretim","Ortaöğretim","Yüksek.."};
		jcb =new JComboBox(icerik);
		jpn[7]=new JPanel();
		jpn[7].add(jcb);
		
		jpn[8]=new JPanel();
		JButton jbtn1= new JButton("Göster");
		jbtn1.addActionListener(this);
		jbtn1.setActionCommand("goster");
		jpn[8].add(jbtn1);
		
		jpn[9]=new JPanel();
		JButton jbtn2= new JButton("Sıfırla");
		jbtn2.addActionListener(new deneme());
		
		jpn[9].add(jbtn2);
			
	
		for(int i =0; i<jpn.length;i++)
		{
			
			if(i%2==0 && i<7) // 0,2,4,6 nolu bilesenler Label
				jpn[i].setLayout(new FlowLayout(FlowLayout.RIGHT)); // Labellari saga yasladik
			
			
			jfrm.add(jpn[i]);
		}
		
		jfrm.pack(); // frame boyutunu otomatik olarak sigdir
		jfrm.setVisible(true);
		
	}

	@Override
	public void actionPerformed(ActionEvent ae) {

		if(ae.getActionCommand().equals("goster"))
		{
			String sonuc="";
			
			sonuc="Ad Soyad: "+jtf_adsoyad.getText()+" Tel No: "+	jtf_tel.getText();
			
			if(jrb_m.isSelected())
				sonuc+=" Cinsiyet: "+jrb_m.getText();
			else
				sonuc+=" Cinsiyet: "+jrb_f.getText();
			
			sonuc+="Eğitim Durumu: "+jcb.getSelectedItem();
			
			
			JOptionPane.showMessageDialog(null, sonuc,"Özet",JOptionPane.INFORMATION_MESSAGE);
			
			
		}
		else
		{
			jtf_adsoyad.setText("");
			jtf_tel.setText("");
			jrb_m.setSelected(true);
			jcb.setSelectedIndex(0);	
		}
		
		

	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new formuyg();

	}

}


class deneme implements ActionListener
{
	
	public void actionPerformed(ActionEvent ae)
	{
		JOptionPane.showMessageDialog(null, "deneme123");
		
	}
	
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class formuyg implements ActionListener {

JTextField jtf_adsoyad, jtf_tel;

JRadioButton jrb_m,jrb_f;

JComboBox jcb;

public formuyg() {

JFrame jfrm = new JFrame();

jfrm.setLayout(new GridLayout(5,2));

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JPanel[] jpn = new JPanel[10];

jpn[0]=new JPanel();

JLabel jlab1= new JLabel("Ad Soyad:");

jpn[0].add(jlab1);

jpn[1]=new JPanel();

jtf_adsoyad = new JTextField(10);

jpn[1].add(jtf_adsoyad);

jpn[2]=new JPanel();

jlab1= new JLabel("Tel No:");

jpn[2].add(jlab1);

jpn[3]=new JPanel();

jtf_tel = new JTextField(10);

jpn[3].add(jtf_tel);

jpn[4]=new JPanel();

jlab1= new JLabel("Cinsiyet:");

jpn[4].add(jlab1);

jpn[5]=new JPanel();

jrb_m= new JRadioButton("Bay",true);

jrb_f= new JRadioButton("Bayan");

ButtonGroup bg = new ButtonGroup(); // grup elemanlarindan sadece biri secilebilsin

bg.add(jrb_m);

bg.add(jrb_f);

jpn[5].add(jrb_m);

jpn[5].add(jrb_f);

jpn[6]=new JPanel();

jlab1= new JLabel("Eğitim Durumu:");

jpn[6].add(jlab1);

String[] icerik={"Yok","İlköğretim","Ortaöğretim","Yüksek.."};

jcb =new JComboBox(icerik);

jpn[7]=new JPanel();

jpn[7].add(jcb);

jpn[8]=new JPanel();

JButton jbtn1= new JButton("Göster");

jbtn1.addActionListener(this);

jbtn1.setActionCommand("goster");

jpn[8].add(jbtn1);

jpn[9]=new JPanel();

JButton jbtn2= new JButton("Sıfırla");

jbtn2.addActionListener(new deneme());

jpn[9].add(jbtn2);

for(int i =0; i<jpn.length;i++)

{

if(i%2==0 && i<7) // 0,2,4,6 nolu bilesenler Label

jpn[i].setLayout(new FlowLayout(FlowLayout.RIGHT)); // Labellari saga yasladik

jfrm.add(jpn[i]);

}

jfrm.pack(); // frame boyutunu otomatik olarak sigdir

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent ae) {

if(ae.getActionCommand().equals("goster"))

{

String sonuc="";

sonuc="Ad Soyad: "+jtf_adsoyad.getText()+" Tel No: "+ jtf_tel.getText();

if(jrb_m.isSelected())

sonuc+=" Cinsiyet: "+jrb_m.getText();

else

sonuc+=" Cinsiyet: "+jrb_f.getText();

sonuc+="Eğitim Durumu: "+jcb.getSelectedItem();

JOptionPane.showMessageDialog(null, sonuc,"Özet",JOptionPane.INFORMATION_MESSAGE);

}

else

{

jtf_adsoyad.setText("");

jtf_tel.setText("");

jrb_m.setSelected(true);

jcb.setSelectedIndex(0);

}

/**

* @param args

public static void main(String[] args) {

new formuyg();

}

class deneme implements ActionListener

{

public void actionPerformed(ActionEvent ae)

{

JOptionPane.showMessageDialog(null, "deneme123");

}

Okumaya devam et

Java-2 2016 Hafta-6 Örnek-1

17 Mart 2016 tarihinde gönderilmiş caglar tarafından

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;


public class grid implements ActionListener {

	public grid() {
	
		JFrame jfrm = new JFrame();
		//jfrm.setSize(150,150);
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new GridLayout(2,2));
		
		JLabel jlab1 = new JLabel("eleman-1");
		JButton jbtn1 = new JButton("Button-1");
		JLabel jlab2 = new JLabel("eleman-2");
		JButton jbtn2 = new JButton("Button-2");
		
		JPanel jpn1 = new JPanel();
		JPanel jpn2 = new JPanel();
		JPanel jpn3 = new JPanel();
		JPanel jpn4 = new JPanel();
		
		
		jpn1.add(jlab1);
		jpn2.add(jbtn1);
		jpn3.add(jlab2);
		jpn4.add(jbtn2);
		
		jfrm.add(jpn1);
		jfrm.add(jpn2);
		jfrm.add(jpn3);
		jfrm.add(jpn4);
		
		jfrm.pack();
		jfrm.setVisible(true);
		
	}

	@Override
	public void actionPerformed(ActionEvent arg0) {
		

	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new grid();
	}

}

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class grid implements ActionListener {

public grid() {

JFrame jfrm = new JFrame();

//jfrm.setSize(150,150);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new GridLayout(2,2));

JLabel jlab1 = new JLabel("eleman-1");

JButton jbtn1 = new JButton("Button-1");

JLabel jlab2 = new JLabel("eleman-2");

JButton jbtn2 = new JButton("Button-2");

JPanel jpn1 = new JPanel();

JPanel jpn2 = new JPanel();

JPanel jpn3 = new JPanel();

JPanel jpn4 = new JPanel();

jpn1.add(jlab1);

jpn2.add(jbtn1);

jpn3.add(jlab2);

jpn4.add(jbtn2);

jfrm.add(jpn1);

jfrm.add(jpn2);

jfrm.add(jpn3);

jfrm.add(jpn4);

jfrm.pack();

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent arg0) {

}

/**

* @param args

public static void main(String[] args) {

new grid();

}

Okumaya devam et

Java-2 2016 Hafta-5 Örnek-3

17 Mart 201617 Mart 2016 tarihinde gönderilmiş caglar tarafından

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;


public class secenek implements ActionListener
{

JRadioButton jrb1,jrb2,jrb3;
JLabel jlab;
public secenek()
{

	JFrame jfrm = new JFrame("Seçenekler");
	jfrm.setSize(150,150);
	jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	jfrm.setLayout(new FlowLayout());
	
	JPanel jpn = new JPanel();
	jpn.setLayout(new FlowLayout(FlowLayout.LEFT));	
	
	jpn.setPreferredSize(new Dimension(140,140));
	
	jrb1 = new JRadioButton("Galatasaray");
	jrb2 = new JRadioButton("Beşiktaş");
	jrb3 = new JRadioButton("İskenderun BBS");
	
	jrb1.addActionListener(this);
	jrb2.addActionListener(this);
	jrb3.addActionListener(this);
	ButtonGroup bg = new ButtonGroup();
	bg.add(jrb1);
	bg.add(jrb2);
	bg.add(jrb3);
	jlab = new JLabel("Seçiniz");
 	jpn.add(jrb1);
 	jpn.add(jrb2);
 	jpn.add(jrb3);
	jpn.add(jlab);
	
	jfrm.add(jpn);
	jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)
{
     JRadioButton jrb = (JRadioButton) ae.getSource();
     jlab.setText(jrb.getText());
	
	
	/*
	if(jrb1.isSelected())
		jlab.setText(jrb1.getText());
	if(jrb2.isSelected())
		jlab.setText(jrb2.getText());
	if(jrb3.isSelected())
		jlab.setText(jrb3.getText());*/
}

public static void main(String[] args)
{
	new secenek();
}

}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class secenek implements ActionListener

{

JRadioButton jrb1,jrb2,jrb3;

JLabel jlab;

public secenek()

{

JFrame jfrm = new JFrame("Seçenekler");

jfrm.setSize(150,150);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new FlowLayout());

JPanel jpn = new JPanel();

jpn.setLayout(new FlowLayout(FlowLayout.LEFT));

jpn.setPreferredSize(new Dimension(140,140));

jrb1 = new JRadioButton("Galatasaray");

jrb2 = new JRadioButton("Beşiktaş");

jrb3 = new JRadioButton("İskenderun BBS");

jrb1.addActionListener(this);

jrb2.addActionListener(this);

jrb3.addActionListener(this);

ButtonGroup bg = new ButtonGroup();

bg.add(jrb1);

bg.add(jrb2);

bg.add(jrb3);

jlab = new JLabel("Seçiniz");

jpn.add(jrb1);

jpn.add(jrb2);

jpn.add(jrb3);

jpn.add(jlab);

jfrm.add(jpn);

jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)

{

JRadioButton jrb = (JRadioButton) ae.getSource();

jlab.setText(jrb.getText());

if(jrb1.isSelected())

jlab.setText(jrb1.getText());

if(jrb2.isSelected())

jlab.setText(jrb2.getText());

if(jrb3.isSelected())

jlab.setText(jrb3.getText());*/

}

public static void main(String[] args)

{

new secenek();

}

Okumaya devam et

Java-2 2016 Hafta-5 Örnek-2

17 Mart 201617 Mart 2016 tarihinde gönderilmiş caglar tarafından

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class onaykutusu implements ActionListener
{
JCheckBox jckb;
JLabel jlab;
public onaykutusu()
{
	JFrame jfrm = new JFrame("Onay Kutusu Örneği");
	jfrm.setSize(150,150);
	jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	jfrm.setLayout(new FlowLayout());

	JPanel jpn = new JPanel();
	jpn.setPreferredSize( new Dimension(140,140));
	
	jckb = new JCheckBox("Onay");
	JButton jbtn = new JButton("Kontrol Et");
	jbtn.addActionListener(this);
	jbtn.setActionCommand("buton");
	
	jckb.addActionListener(this);
	jckb.setActionCommand("ckb");
	
	jlab = new JLabel("--");
	
	jpn.add(jckb);
	jpn.add(jbtn);
	jpn.add(jlab);
	
	jfrm.add(jpn);
	jfrm.setVisible(true);
}

public void actionPerformed(ActionEvent ae)
{
/*	if(jckb.isSelected())
		jlab.setText("Teşekkürler");
	else
		jlab.setText("Onay Vermelisiniz!");*/
		
	jlab.setText(ae.getActionCommand());		
	


}

public static void main(String[] args)
{
	new onaykutusu();
}


}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class onaykutusu implements ActionListener

{

JCheckBox jckb;

JLabel jlab;

public onaykutusu()

{

JFrame jfrm = new JFrame("Onay Kutusu Örneği");

jfrm.setSize(150,150);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new FlowLayout());

JPanel jpn = new JPanel();

jpn.setPreferredSize( new Dimension(140,140));

jckb = new JCheckBox("Onay");

JButton jbtn = new JButton("Kontrol Et");

jbtn.addActionListener(this);

jbtn.setActionCommand("buton");

jckb.addActionListener(this);

jckb.setActionCommand("ckb");

jlab = new JLabel("--");

jpn.add(jckb);

jpn.add(jbtn);

jpn.add(jlab);

jfrm.add(jpn);

jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)

{

/* if(jckb.isSelected())

jlab.setText("Teşekkürler");

else

jlab.setText("Onay Vermelisiniz!");*/

jlab.setText(ae.getActionCommand());

}

public static void main(String[] args)

{

new onaykutusu();

}

Okumaya devam et

Java-2 2016 Hafta-5 Örnek-1

17 Mart 201617 Mart 2016 tarihinde gönderilmiş caglar tarafından

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class secimkutusu implements ActionListener
{
JLabel jlab;
JComboBox jcb;
public secimkutusu()
{
	String[] str={"abc","xyz","asdasdsa"};
	JFrame jfrm = new JFrame("Seçim Kutusu");
	jfrm.setSize(150,150);
	jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	jfrm.setLayout(new FlowLayout());
	
	JPanel jpn = new JPanel();
	jpn.setPreferredSize(new Dimension(100,100));
	jcb = new JComboBox(str);
	JButton jbtn = new JButton("Getir");
	jbtn.addActionListener(this);
	jlab= new JLabel("--");
	
	jpn.add(jcb);
	jpn.add(jbtn);
	jpn.add(jlab);

	jfrm.add(jpn);	
	jfrm.setVisible(true);
}

public void actionPerformed(ActionEvent ae)
{
	jlab.setText(jcb.getSelectedIndex()+") "+jcb.getSelectedItem());
	
	//int say= jcb.getItemCount();
	
	// son elemani secmek icin
	//jcb.setSelectedIndex(say-1);
	
}

public static void main(String[] asdasd)
{
	new secimkutusu();
}


}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class secimkutusu implements ActionListener

{

JLabel jlab;

JComboBox jcb;

public secimkutusu()

{

String[] str={"abc","xyz","asdasdsa"};

JFrame jfrm = new JFrame("Seçim Kutusu");

jfrm.setSize(150,150);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new FlowLayout());

JPanel jpn = new JPanel();

jpn.setPreferredSize(new Dimension(100,100));

jcb = new JComboBox(str);

JButton jbtn = new JButton("Getir");

jbtn.addActionListener(this);

jlab= new JLabel("--");

jpn.add(jcb);

jpn.add(jbtn);

jpn.add(jlab);

jfrm.add(jpn);

jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)

{

jlab.setText(jcb.getSelectedIndex()+") "+jcb.getSelectedItem());

//int say= jcb.getItemCount();

// son elemani secmek icin

//jcb.setSelectedIndex(say-1);

}

public static void main(String[] asdasd)

{

new secimkutusu();

}

Okumaya devam et

Java-2 – 2016 – Hafta – 4 – 2

8 Mart 201617 Mart 2016 tarihinde gönderilmiş caglar tarafından

import javax.swing.*;
import java.awt.*;

public class panelornegi1
{
	public panelornegi1()
	{
		JFrame jfrm = new JFrame("ornek2");
		jfrm.setSize(200,200);
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new FlowLayout());
		
		JPanel jpn = new JPanel();
		jpn.setPreferredSize(new Dimension(200,200));
		
		JPanel jpn1 = new JPanel();
		jpn1.setBorder(BorderFactory.createLineBorder(Color.YELLOW));
		jpn1.setPreferredSize(new Dimension(195,90));
		JPanel jpn2 = new JPanel();
		jpn2.setBorder(BorderFactory.createLineBorder(Color.RED));
		jpn2.setPreferredSize(new Dimension(195,90));
		
		JLabel jlab1= new JLabel("yazi1");			
		JLabel jlab2= new JLabel("yazi2");
		
		jpn1.add(jlab1);
		jpn2.add(jlab2);
		
		jpn.add(jpn1);
		jpn.add(jpn2);
		
		jfrm.add(jpn);
		
		
		jfrm.setVisible(true);
	}

	public static void main(String[] asds)
	{
		new panelornegi1();
	}

}

import javax.swing.*;

import java.awt.*;

public class panelornegi1

{

public panelornegi1()

{

JFrame jfrm = new JFrame("ornek2");

jfrm.setSize(200,200);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new FlowLayout());

JPanel jpn = new JPanel();

jpn.setPreferredSize(new Dimension(200,200));

JPanel jpn1 = new JPanel();

jpn1.setBorder(BorderFactory.createLineBorder(Color.YELLOW));

jpn1.setPreferredSize(new Dimension(195,90));

JPanel jpn2 = new JPanel();

jpn2.setBorder(BorderFactory.createLineBorder(Color.RED));

jpn2.setPreferredSize(new Dimension(195,90));

JLabel jlab1= new JLabel("yazi1");

JLabel jlab2= new JLabel("yazi2");

jpn1.add(jlab1);

jpn2.add(jlab2);

jpn.add(jpn1);

jpn.add(jpn2);

jfrm.add(jpn);

jfrm.setVisible(true);

}

public static void main(String[] asds)

{

new panelornegi1();

}

Okumaya devam et

Java-2 – 2016 – Hafta – 4 – 1

8 Mart 201617 Mart 2016 tarihinde gönderilmiş caglar tarafından

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class nothesaplama implements ActionListener
{
JLabel jlab_sonuc;
JTextField jtf_vize, jtf_final; 
public nothesaplama()
{
JFrame jfrm = new JFrame("Not Hesaplama");
jfrm.setSize(130,120);
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jfrm.setLayout(new FlowLayout());

JLabel jlab1= new JLabel("Vize:");
jtf_vize = new JTextField(5);

JLabel jlab2= new JLabel("Final:");
jtf_final = new JTextField(5);

JButton jbtn = new JButton("Hesapla");
jbtn.addActionListener(this); // butonun tiklama olayini izle
jlab_sonuc= new JLabel();

jfrm.add(jlab1);
jfrm.add(jtf_vize);
jfrm.add(jlab2);
jfrm.add(jtf_final);
jfrm.add(jbtn);
jfrm.add(jlab_sonuc);

jfrm.setVisible(true);
}

public void actionPerformed(ActionEvent ae)
{
// hesaplama kodu
int vize_notu=kontrol(jtf_vize.getText());
int final_notu=kontrol(jtf_final.getText());
if(vize_notu>-1 && final_notu>-1)
{
	String harf= "FF";
	String sonuc="";
	if(final_notu>29)
	{
		int ort=(int)Math.round(vize_notu*0.4+final_notu*0.6);
		String[] harfler={"AA","BA","BB","CB","CC","DC","DD","FD"};
		int[] sinirlar={90,80,70,60,50,40,35,30};
		for(int i=0;i<sinirlar.length;i++)
		{
			if(ort>=sinirlar[i])
			{
				harf=harfler[i];
				break;
			}
		}
		sonuc="Ort: "+ort+" Harf: "+harf;
	}
	else
		sonuc="Harf: FF (final<30)";	
	jlab_sonuc.setText(sonuc);
}
}

public int kontrol(String str)
{
	try
	{
		int not=Integer.parseInt(str);
		if(not>=0 && not<=100)
			return not;
		return -1;
	}
	catch(Exception ex)
	{
	}
	return -1;	
}

public static void main(String[] adsd)
{
	new nothesaplama();
}

}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class nothesaplama implements ActionListener

{

JLabel jlab_sonuc;

JTextField jtf_vize, jtf_final;

public nothesaplama()

{

JFrame jfrm = new JFrame("Not Hesaplama");

jfrm.setSize(130,120);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new FlowLayout());

JLabel jlab1= new JLabel("Vize:");

jtf_vize = new JTextField(5);

JLabel jlab2= new JLabel("Final:");

jtf_final = new JTextField(5);

JButton jbtn = new JButton("Hesapla");

jbtn.addActionListener(this); // butonun tiklama olayini izle

jlab_sonuc= new JLabel();

jfrm.add(jlab1);

jfrm.add(jtf_vize);

jfrm.add(jlab2);

jfrm.add(jtf_final);

jfrm.add(jbtn);

jfrm.add(jlab_sonuc);

jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)

{

// hesaplama kodu

int vize_notu=kontrol(jtf_vize.getText());

int final_notu=kontrol(jtf_final.getText());

if(vize_notu>-1 && final_notu>-1)

{

String harf= "FF";

String sonuc="";

if(final_notu>29)

{

int ort=(int)Math.round(vize_notu*0.4+final_notu*0.6);

String[] harfler={"AA","BA","BB","CB","CC","DC","DD","FD"};

int[] sinirlar={90,80,70,60,50,40,35,30};

for(int i=0;i<sinirlar.length;i++)

{

if(ort>=sinirlar[i])

{

harf=harfler[i];

break;

}

sonuc="Ort: "+ort+" Harf: "+harf;

}

else

sonuc="Harf: FF (final<30)";

jlab_sonuc.setText(sonuc);

}

public int kontrol(String str)

{

try

{

int not=Integer.parseInt(str);

if(not>=0 && not<=100)

return not;

return -1;

}

catch(Exception ex)

{

}

return -1;

}

public static void main(String[] adsd)

{

new nothesaplama();

}

Okumaya devam et

Java-2 – YO2015 – Hafta – 6

14 Ağustos 201514 Ağustos 2015 tarihinde gönderilmiş caglar tarafından

import java.awt.event.*;
import javax.swing.*;
import java.awt.*;
import java.sql.*;

public class ornek1 implements ActionListener {

	JList[] jls;
	DefaultListModel<String>[] dlm_str; // ad ve tip 
	DefaultListModel<Integer>[] dlm_int;// sayilar(gunduz, tutar,..)
	JTextField jtf_ad,jtf_gunduz,jtf_puant,jtf_gece;
	JComboBox<String> jcb;
	
	DefaultListModel<Integer> cid,mid; // cid:combodan secilen tip bilgisine ait id (idfiyat)
									   // mid: silmek icin musteri id (idmusteri)

	public ornek1() {
		
		dlm_str=new DefaultListModel[2];
		dlm_int=new DefaultListModel[5];
		jls = new JList[7];
		
		JFrame jfrm = new JFrame("Elekrik sayac tarifesi");
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new GridLayout(1,7));
		jfrm.setSize(750,250);
		
		JPanel jpn = new JPanel();
		JLabel jlab = new JLabel("Müşteri Adı");
		dlm_str[0]= new DefaultListModel<String>(); // musteri isimleri
		jls[0]= new JList<String>(dlm_str[0]);
		JScrollPane jsp = new JScrollPane(jls[0]);
		jsp.setPreferredSize(new Dimension(80,150));
		jtf_ad= new JTextField();
		jtf_ad.setPreferredSize(new Dimension(80,20));
		JButton jbtn = new JButton("Ekle");
		jbtn.addActionListener(this);
		jbtn.setActionCommand("ekle");
		jpn.add(jlab);
		jpn.add(jsp);
		jpn.add(jtf_ad);
		jpn.add(jbtn);
		jfrm.add(jpn);
		
		
		jpn = new JPanel();
		jlab = new JLabel("Tarife");
		dlm_str[1]= new DefaultListModel<String>();
		jls[1]= new JList<String>(dlm_str[1]);
		jsp = new JScrollPane(jls[1]);
		jsp.setPreferredSize(new Dimension(80,150));
		jcb= new JComboBox<String>();
		jcb.setPreferredSize(new Dimension(100,20));
		jbtn = new JButton("Sil");
		jbtn.addActionListener(this);
		jbtn.setActionCommand("sil");
		jpn.add(jlab);
		jpn.add(jsp);
		jpn.add(jcb);
		jpn.add(jbtn);
		jfrm.add(jpn);
				
		jpn = new JPanel();
		jlab = new JLabel("Gündüz");
		dlm_int[0]= new DefaultListModel<Integer>();
		jls[2]= new JList<Integer>(dlm_int[0]);
		jsp = new JScrollPane(jls[2]);
		jsp.setPreferredSize(new Dimension(80,150));
		jtf_gunduz= new JTextField();
		jtf_gunduz.setPreferredSize(new Dimension(80,20));
		jbtn = new JButton("Güncelle");
		jbtn.addActionListener(this);
		jbtn.setActionCommand("guncelle");
		jpn.add(jlab);
		jpn.add(jsp);
		jpn.add(jtf_gunduz);
		jpn.add(jbtn);
		jfrm.add(jpn);
		
		
		
		jpn = new JPanel();
		jlab = new JLabel("Puant");
		dlm_int[1]= new DefaultListModel<Integer>();
		jls[3]= new JList<Integer>(dlm_int[1]);
		jsp = new JScrollPane(jls[3]);
		jsp.setPreferredSize(new Dimension(80,150));
		jtf_puant= new JTextField();
		jtf_puant.setPreferredSize(new Dimension(80,20));
		jpn.add(jlab);
		jpn.add(jsp);
		jpn.add(jtf_puant);
		jfrm.add(jpn);
		
		
		jpn = new JPanel();
		jlab = new JLabel("Gece");
		dlm_int[2]= new DefaultListModel<Integer>();
		jls[4]= new JList<Integer>(dlm_int[2]);
		jsp = new JScrollPane(jls[4]);
		jsp.setPreferredSize(new Dimension(80,150));
		jtf_gece= new JTextField();
		jtf_gece.setPreferredSize(new Dimension(80,20));
		jpn.add(jlab);
		jpn.add(jsp);
		jpn.add(jtf_gece);
		jfrm.add(jpn);
		
		jpn = new JPanel();
		jlab = new JLabel("Tek Zamanlı");
		dlm_int[3]= new DefaultListModel<Integer>();
		jls[5]= new JList<Integer>(dlm_int[3]);
		jsp = new JScrollPane(jls[5]);
		jsp.setPreferredSize(new Dimension(80,150));
		jpn.add(jlab);
		jpn.add(jsp);
		jfrm.add(jpn);
		
		jpn = new JPanel();
		jlab = new JLabel("Üç Zamanlı");
		dlm_int[4]= new DefaultListModel<Integer>();
		jls[6]= new JList<Integer>(dlm_int[4]);
		jsp = new JScrollPane(jls[6]);
		jsp.setPreferredSize(new Dimension(80,150));
		jpn.add(jlab);
		jpn.add(jsp);
		jfrm.add(jpn);
		verigetir();
		jfrm.setVisible(true);
	}
	
	
	private void verigetir()
	{		
		Connection conn = baglan();
		
		try{
			
			//temizlik
			
			for(int i=0;i<dlm_str.length;i++)
				dlm_str[i].removeAllElements();
			
			for(int i=0;i<dlm_int.length;i++)
				dlm_int[i].removeAllElements();
			
			String sql_combo="select idfiyat,tip from fiyat;";
			
			Statement st = conn.createStatement();
			ResultSet rs =st.executeQuery(sql_combo);
			cid= new DefaultListModel<Integer>();
			jcb.removeAllItems(); // listeyi temizle
			jcb.addItem("Seçiniz");
			while(rs.next())
			{
				cid.addElement(rs.getInt("idfiyat")); // ekleme kisminda kullanilacak
				jcb.addItem(rs.getString("tip"));		
			}
			
			
			String sql_list="select idmusteri,adi,hgunduz,hpuant,hgece,tip," +
					"(hgunduz+hpuant+hgece)*tekzamanli/100 as tutar1," +
					"(hgunduz*gunduz+hpuant*puant+hgece*gece)/100 as tutar2" +
					" from musteri inner join fiyat on tipid=idfiyat;";
		
			mid= new DefaultListModel<Integer>(); // silmek icin kullanilacak
			
			rs =st.executeQuery(sql_list);
			while(rs.next())
			{
				
				int tutar1=rs.getInt("tutar1");
				int tutar2=rs.getInt("tutar2");
				
				mid.addElement(rs.getInt("idmusteri"));
				dlm_str[0].addElement(rs.getString("adi"));
				dlm_str[1].addElement(rs.getString("tip"));
				dlm_int[0].addElement(rs.getInt("hgunduz"));
				dlm_int[1].addElement(rs.getInt("hpuant"));
				dlm_int[2].addElement(rs.getInt("hgece"));
				dlm_int[3].addElement(tutar1);
				dlm_int[4].addElement(tutar2);
				
				
			}
		
		
		}catch(Exception ex)
		{

		}
		
		
		try{
			
			conn.close();
			
		}
		catch(Exception ex)
		{
			
		}
		
		
	}

	public Connection baglan()
	{
	Connection conn=null;
	try{
		Class.forName("org.sqlite.JDBC");
		conn=DriverManager.getConnection("jdbc:sqlite:ornek1.db"); 
	}
	catch(Exception ex)
	{
		JOptionPane.showMessageDialog(null,"Bağlantı Yapılamadı!","Hata",0);
	}
	return conn;	
	}
	
	@Override
	public void actionPerformed(ActionEvent ae) {

		Connection conn = baglan();
		
		if(ae.getActionCommand().equals("ekle"))
		{
			
			try{
				int gunduz =Integer.parseInt(jtf_gunduz.getText());
				int puant =Integer.parseInt(jtf_puant.getText());
				int gece =Integer.parseInt(jtf_gece.getText());
				
				if(jtf_ad.getText().length()>0 && jcb.getSelectedIndex()>0)
				{
					
					String sql= "insert into musteri(adi,tipid,hgunduz,hpuant,hgece)" +
							" values(?,?,?,?,?);";
					
					int tipid=cid.get(jcb.getSelectedIndex()-1);
										
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setString(1, jtf_ad.getText());
					ps.setInt(2, tipid);
					ps.setInt(3, gunduz);
					ps.setInt(4, puant);
					ps.setInt(5, gece);
					ps.executeUpdate();
					
					jtf_ad.setText("");
					jtf_gunduz.setText("");
					jtf_puant.setText("");
					jtf_gece.setText("");
				}
				
				
				
				
			}catch(Exception ex)
			{
				
				
			}
			
			
			
			
		}
	
		if(ae.getActionCommand().equals("sil"))
		{
		
			try{
				
				String sql ="delete from musteri where idmusteri=?";
				
				int secilen=jls[0].getSelectedIndex();
				
				if(secilen>-1)
				{
					int silinecek_id=mid.get(secilen); // silinecek musterinin id	
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setInt(1, silinecek_id);
					ps.executeUpdate();
				}
				
				
				
				
			}catch(Exception ex)
			{
				
				
			}
			
			
		}
	
		if(ae.getActionCommand().equals("guncelle"))
		{
			
			try
			{
				int gunduz =Integer.parseInt(jtf_gunduz.getText());
				int puant =Integer.parseInt(jtf_puant.getText());
				int gece =Integer.parseInt(jtf_gece.getText());
				
				int listeden_sec=jls[0].getSelectedIndex();
				
				if(listeden_sec>-1 && jtf_ad.getText().length()>0 && jcb.getSelectedIndex()>0)
				{
					 String sql ="update musteri set adi=?,tipid=?" +
						 		",hgunduz=?,hpuant=?,hgece=? where idmusteri=?;";	
							
					int tipid=cid.get(jcb.getSelectedIndex()-1);
					int musteri_id=mid.get(listeden_sec);
										
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setString(1, jtf_ad.getText());
					ps.setInt(2, tipid);
					ps.setInt(3, gunduz);
					ps.setInt(4, puant);
					ps.setInt(5, gece);
					ps.setInt(6, musteri_id);
					ps.executeUpdate();
					
					jtf_ad.setText("");
					jtf_gunduz.setText("");
					jtf_puant.setText("");
					jtf_gece.setText("");
				}

				
			}catch(Exception ex)
			{	
				
			}
			
		}
	
		verigetir();
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		new ornek1();
	}

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

import java.awt.event.*;

import javax.swing.*;

import java.awt.*;

import java.sql.*;

public class ornek1 implements ActionListener {

JList[] jls;

DefaultListModel<String>[] dlm_str; // ad ve tip

DefaultListModel<Integer>[] dlm_int;// sayilar(gunduz, tutar,..)

JTextField jtf_ad,jtf_gunduz,jtf_puant,jtf_gece;

JComboBox<String> jcb;

DefaultListModel<Integer> cid,mid; // cid:combodan secilen tip bilgisine ait id (idfiyat)

// mid: silmek icin musteri id (idmusteri)

public ornek1() {

dlm_str=new DefaultListModel[2];

dlm_int=new DefaultListModel[5];

jls = new JList[7];

JFrame jfrm = new JFrame("Elekrik sayac tarifesi");

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new GridLayout(1,7));

jfrm.setSize(750,250);

JPanel jpn = new JPanel();

JLabel jlab = new JLabel("Müşteri Adı");

dlm_str[0]= new DefaultListModel<String>(); // musteri isimleri

jls[0]= new JList<String>(dlm_str[0]);

JScrollPane jsp = new JScrollPane(jls[0]);

jsp.setPreferredSize(new Dimension(80,150));

jtf_ad= new JTextField();

jtf_ad.setPreferredSize(new Dimension(80,20));

JButton jbtn = new JButton("Ekle");

jbtn.addActionListener(this);

jbtn.setActionCommand("ekle");

jpn.add(jlab);

jpn.add(jsp);

jpn.add(jtf_ad);

jpn.add(jbtn);

jfrm.add(jpn);

jpn = new JPanel();

jlab = new JLabel("Tarife");

dlm_str[1]= new DefaultListModel<String>();

jls[1]= new JList<String>(dlm_str[1]);

jsp = new JScrollPane(jls[1]);

jsp.setPreferredSize(new Dimension(80,150));

jcb= new JComboBox<String>();

jcb.setPreferredSize(new Dimension(100,20));

jbtn = new JButton("Sil");

jbtn.addActionListener(this);

jbtn.setActionCommand("sil");

jpn.add(jlab);

jpn.add(jsp);

jpn.add(jcb);

jpn.add(jbtn);

jfrm.add(jpn);

jpn = new JPanel();

jlab = new JLabel("Gündüz");

dlm_int[0]= new DefaultListModel<Integer>();

jls[2]= new JList<Integer>(dlm_int[0]);

jsp = new JScrollPane(jls[2]);

jsp.setPreferredSize(new Dimension(80,150));

jtf_gunduz= new JTextField();

jtf_gunduz.setPreferredSize(new Dimension(80,20));

jbtn = new JButton("Güncelle");

jbtn.addActionListener(this);

jbtn.setActionCommand("guncelle");

jpn.add(jlab);

jpn.add(jsp);

jpn.add(jtf_gunduz);

jpn.add(jbtn);

jfrm.add(jpn);

jpn = new JPanel();

jlab = new JLabel("Puant");

dlm_int[1]= new DefaultListModel<Integer>();

jls[3]= new JList<Integer>(dlm_int[1]);

jsp = new JScrollPane(jls[3]);

jsp.setPreferredSize(new Dimension(80,150));

jtf_puant= new JTextField();

jtf_puant.setPreferredSize(new Dimension(80,20));

jpn.add(jlab);

jpn.add(jsp);

jpn.add(jtf_puant);

jfrm.add(jpn);

jpn = new JPanel();

jlab = new JLabel("Gece");

dlm_int[2]= new DefaultListModel<Integer>();

jls[4]= new JList<Integer>(dlm_int[2]);

jsp = new JScrollPane(jls[4]);

jsp.setPreferredSize(new Dimension(80,150));

jtf_gece= new JTextField();

jtf_gece.setPreferredSize(new Dimension(80,20));

jpn.add(jlab);

jpn.add(jsp);

jpn.add(jtf_gece);

jfrm.add(jpn);

jpn = new JPanel();

jlab = new JLabel("Tek Zamanlı");

dlm_int[3]= new DefaultListModel<Integer>();

jls[5]= new JList<Integer>(dlm_int[3]);

jsp = new JScrollPane(jls[5]);

jsp.setPreferredSize(new Dimension(80,150));

jpn.add(jlab);

jpn.add(jsp);

jfrm.add(jpn);

jpn = new JPanel();

jlab = new JLabel("Üç Zamanlı");

dlm_int[4]= new DefaultListModel<Integer>();

jls[6]= new JList<Integer>(dlm_int[4]);

jsp = new JScrollPane(jls[6]);

jsp.setPreferredSize(new Dimension(80,150));

jpn.add(jlab);

jpn.add(jsp);

jfrm.add(jpn);

verigetir();

jfrm.setVisible(true);

}

private void verigetir()

{

Connection conn = baglan();

try{

//temizlik

for(int i=0;i<dlm_str.length;i++)

dlm_str[i].removeAllElements();

for(int i=0;i<dlm_int.length;i++)

dlm_int[i].removeAllElements();

String sql_combo="select idfiyat,tip from fiyat;";

Statement st = conn.createStatement();

ResultSet rs =st.executeQuery(sql_combo);

cid= new DefaultListModel<Integer>();

jcb.removeAllItems(); // listeyi temizle

jcb.addItem("Seçiniz");

while(rs.next())

{

cid.addElement(rs.getInt("idfiyat")); // ekleme kisminda kullanilacak

jcb.addItem(rs.getString("tip"));

}

String sql_list="select idmusteri,adi,hgunduz,hpuant,hgece,tip," +

"(hgunduz+hpuant+hgece)*tekzamanli/100 as tutar1," +

"(hgunduz*gunduz+hpuant*puant+hgece*gece)/100 as tutar2" +

" from musteri inner join fiyat on tipid=idfiyat;";

mid= new DefaultListModel<Integer>(); // silmek icin kullanilacak

rs =st.executeQuery(sql_list);

while(rs.next())

{

int tutar1=rs.getInt("tutar1");

int tutar2=rs.getInt("tutar2");

mid.addElement(rs.getInt("idmusteri"));

dlm_str[0].addElement(rs.getString("adi"));

dlm_str[1].addElement(rs.getString("tip"));

dlm_int[0].addElement(rs.getInt("hgunduz"));

dlm_int[1].addElement(rs.getInt("hpuant"));

dlm_int[2].addElement(rs.getInt("hgece"));

dlm_int[3].addElement(tutar1);

dlm_int[4].addElement(tutar2);

}

}catch(Exception ex)

{

}

try{

conn.close();

}

catch(Exception ex)

{

}

public Connection baglan()

{

Connection conn=null;

try{

Class.forName("org.sqlite.JDBC");

conn=DriverManager.getConnection("jdbc:sqlite:ornek1.db");

}

catch(Exception ex)

{

JOptionPane.showMessageDialog(null,"Bağlantı Yapılamadı!","Hata",0);

}

return conn;

}

@Override

public void actionPerformed(ActionEvent ae) {

Connection conn = baglan();

if(ae.getActionCommand().equals("ekle"))

{

try{

int gunduz =Integer.parseInt(jtf_gunduz.getText());

int puant =Integer.parseInt(jtf_puant.getText());

int gece =Integer.parseInt(jtf_gece.getText());

if(jtf_ad.getText().length()>0 && jcb.getSelectedIndex()>0)

{

String sql= "insert into musteri(adi,tipid,hgunduz,hpuant,hgece)" +

" values(?,?,?,?,?);";

int tipid=cid.get(jcb.getSelectedIndex()-1);

PreparedStatement ps = conn.prepareStatement(sql);

ps.setString(1, jtf_ad.getText());

ps.setInt(2, tipid);

ps.setInt(3, gunduz);

ps.setInt(4, puant);

ps.setInt(5, gece);

ps.executeUpdate();

jtf_ad.setText("");

jtf_gunduz.setText("");

jtf_puant.setText("");

jtf_gece.setText("");

}

}catch(Exception ex)

{

}

if(ae.getActionCommand().equals("sil"))

{

try{

String sql ="delete from musteri where idmusteri=?";

int secilen=jls[0].getSelectedIndex();

if(secilen>-1)

{

int silinecek_id=mid.get(secilen); // silinecek musterinin id

PreparedStatement ps = conn.prepareStatement(sql);

ps.setInt(1, silinecek_id);

ps.executeUpdate();

}

}catch(Exception ex)

{

}

if(ae.getActionCommand().equals("guncelle"))

{

try

{

int gunduz =Integer.parseInt(jtf_gunduz.getText());

int puant =Integer.parseInt(jtf_puant.getText());

int gece =Integer.parseInt(jtf_gece.getText());

int listeden_sec=jls[0].getSelectedIndex();

if(listeden_sec>-1 && jtf_ad.getText().length()>0 && jcb.getSelectedIndex()>0)

{

String sql ="update musteri set adi=?,tipid=?" +

",hgunduz=?,hpuant=?,hgece=? where idmusteri=?;";

int tipid=cid.get(jcb.getSelectedIndex()-1);

int musteri_id=mid.get(listeden_sec);

PreparedStatement ps = conn.prepareStatement(sql);

ps.setString(1, jtf_ad.getText());

ps.setInt(2, tipid);

ps.setInt(3, gunduz);

ps.setInt(4, puant);

ps.setInt(5, gece);

ps.setInt(6, musteri_id);

ps.executeUpdate();

jtf_ad.setText("");

jtf_gunduz.setText("");

jtf_puant.setText("");

jtf_gece.setText("");

}

}catch(Exception ex)

{

}

verigetir();

}

/**

* @param args

public static void main(String[] args) {

// TODO Auto-generated method stub

new ornek1();

}

JAVA-2 YO2015 6. Hafta Uygulamaları

Okumaya devam et

Java-2 – YO2015 – Hafta – 5

4 Ağustos 20154 Ağustos 2015 tarihinde gönderilmiş caglar tarafından

import java.awt.event.*;
import javax.swing.*;
import java.awt.*;
import java.sql.*;

public class ornek1 implements ActionListener {

	JTextField jtf;
	DefaultListModel<String> lm;

	public ornek1() {

		JFrame jfrm = new JFrame("ornek-1 veritabani");
		jfrm.setSize(180, 200);
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new FlowLayout());
		lm = new DefaultListModel<String>();

		JList<String> jlist = new JList<String>(lm);
		JScrollPane jscp = new JScrollPane(jlist);
		jscp.setPreferredSize(new Dimension(150, 120));
		jfrm.add(jscp);

		jtf = new JTextField();
		jtf.setPreferredSize(new Dimension(150, 20));
		jfrm.add(jtf);

		JButton jbtn = new JButton("Ekle");
		jbtn.addActionListener(this);
		jbtn.setPreferredSize(new Dimension(150, 30));
		jfrm.add(jbtn);

		verigetir();

		jfrm.setVisible(true);
	}

	public Connection baglan() {
		Connection conn = null;

		try {
			Class.forName("org.sqlite.JDBC");
			conn = DriverManager.getConnection("jdbc:sqlite:ornek1.db");
		} catch (Exception ex) {
			JOptionPane.showMessageDialog(null, "Bağlantı yapılamadı!", "Hata",
					0);
		}

		return conn;
	}

	public void verigetir() {
		Connection conn = baglan();

		String sql = "select id,ad from liste;";

		try {
			Statement st = conn.createStatement();
			ResultSet rs = st.executeQuery(sql);

			lm.clear();

			while (rs.next()) {
				lm.addElement(rs.getString("ad"));
			}

		} catch (Exception ex) {
		}

		try {
			conn.close();
		} catch (Exception ex) {

		}

	}

	@Override
	public void actionPerformed(ActionEvent arg0) {

		if (jtf.getText().length() > 0) {
			String sql = "insert into liste(ad) values(?)";

			Connection conn = baglan();

			try {

				PreparedStatement ps = conn.prepareStatement(sql);
				ps.setString(1, jtf.getText());
				ps.executeUpdate();
			} catch (Exception ex) {
			}

			try {
				conn.close();
			} catch (Exception ex) {
			}

			jtf.setText("");
		}

		verigetir();

	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new ornek1();
	}

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

import java.awt.event.*;

import javax.swing.*;

import java.awt.*;

import java.sql.*;

public class ornek1 implements ActionListener {

JTextField jtf;

DefaultListModel<String> lm;

public ornek1() {

JFrame jfrm = new JFrame("ornek-1 veritabani");

jfrm.setSize(180, 200);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new FlowLayout());

lm = new DefaultListModel<String>();

JList<String> jlist = new JList<String>(lm);

JScrollPane jscp = new JScrollPane(jlist);

jscp.setPreferredSize(new Dimension(150, 120));

jfrm.add(jscp);

jtf = new JTextField();

jtf.setPreferredSize(new Dimension(150, 20));

jfrm.add(jtf);

JButton jbtn = new JButton("Ekle");

jbtn.addActionListener(this);

jbtn.setPreferredSize(new Dimension(150, 30));

jfrm.add(jbtn);

verigetir();

jfrm.setVisible(true);

}

public Connection baglan() {

Connection conn = null;

try {

Class.forName("org.sqlite.JDBC");

conn = DriverManager.getConnection("jdbc:sqlite:ornek1.db");

} catch (Exception ex) {

JOptionPane.showMessageDialog(null, "Bağlantı yapılamadı!", "Hata",

0);

}

return conn;

}

public void verigetir() {

Connection conn = baglan();

String sql = "select id,ad from liste;";

try {

Statement st = conn.createStatement();

ResultSet rs = st.executeQuery(sql);

lm.clear();

while (rs.next()) {

lm.addElement(rs.getString("ad"));

}

} catch (Exception ex) {

}

try {

conn.close();

} catch (Exception ex) {

}

@Override

public void actionPerformed(ActionEvent arg0) {

if (jtf.getText().length() > 0) {

String sql = "insert into liste(ad) values(?)";

Connection conn = baglan();

try {

PreparedStatement ps = conn.prepareStatement(sql);

ps.setString(1, jtf.getText());

ps.executeUpdate();

} catch (Exception ex) {

}

try {

conn.close();

} catch (Exception ex) {

}

jtf.setText("");

}

verigetir();

}

/**

* @param args

public static void main(String[] args) {

new ornek1();

}

import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
import java.sql.*;

public class ornek2 implements ActionListener {

	JList<String> jl1, jl2, jl3;
	DefaultListModel<String> lm1, lm2, lm3;
	DefaultListModel<Integer> lmid;
	JTextField jtf1, jtf2;

	public ornek2() {

		JFrame jfrm = new JFrame("ornek-2 veritabani");
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new GridLayout(1, 3));
		jfrm.setSize(200, 220);
		JPanel jpn = new JPanel();

		lm1 = new DefaultListModel<String>();
		jl1 = new JList<String>(lm1);
		jtf1 = new JTextField();
		jtf1.setPreferredSize(new Dimension(55, 20));
		JScrollPane jscp = new JScrollPane(jl1);
		jscp.setPreferredSize(new Dimension(55, 150));
		JButton jbtn1 = new JButton("Ekle");
		jbtn1.addActionListener(this);
		jbtn1.setActionCommand("ekle");
		jpn.add(jscp);
		jpn.add(jtf1);
		jpn.add(jbtn1);
		jfrm.add(jpn);

		jpn = new JPanel();
		lm2 = new DefaultListModel<String>();
		jl2 = new JList<String>(lm2);
		jtf2 = new JTextField();
		jtf2.setPreferredSize(new Dimension(55, 20));
		jscp = new JScrollPane(jl2);
		jscp.setPreferredSize(new Dimension(55, 150));
		JButton jbtn2 = new JButton("Sil");
		jbtn2.addActionListener(this);
		jpn.add(jscp);
		jpn.add(jtf2);
		jpn.add(jbtn2);
		jfrm.add(jpn);

		jpn = new JPanel();
		lm3 = new DefaultListModel<String>();
		jl3 = new JList<String>(lm3);
		jscp = new JScrollPane(jl3);
		jscp.setPreferredSize(new Dimension(55, 150));
		jpn.add(jscp);
		jfrm.add(jpn);
		verigetir();
		jfrm.setVisible(true);
	}

	private void verigetir() {

		Connection conn = baglan();

		try {
			String sql = "select idnot,no,ort from notlistesi;";

			Statement st = conn.createStatement();
			ResultSet rs = st.executeQuery(sql);

			lm1.clear();
			lm2.clear();
			lm3.clear();
			lmid = new DefaultListModel<Integer>();

			while (rs.next()) {
				lmid.addElement(rs.getInt("idnot")); // int, silmek icin
				lm1.addElement(rs.getString("no"));
				lm2.addElement(rs.getString("ort"));
				int ort = rs.getInt("ort");
				lm3.addElement(harfgetir(ort));

			}
		} catch (Exception ex) {

		}

		try {

			conn.close();

		} catch (Exception ex) {
		}

	}

	public String harfgetir(int ort) {
		String[] harfler = { "AA", "BA", "BB", "CB", "CC", "DC", "DD", "FD" };
		int[] sinir = { 90, 80, 70, 60, 50, 40, 35, 30 };

		for (int i = 0; i < harfler.length; i++) {
			if (ort >= sinir[i])
				return harfler[i];
		}

		return "FF";
	}

	public Connection baglan() {
		Connection conn = null;

		try {
			Class.forName("org.sqlite.JDBC");
			conn = DriverManager.getConnection("jdbc:sqlite:ornek2.db");
		} catch (Exception ex) {
			JOptionPane.showMessageDialog(null, "Bağlantı yapılamadı!", "Hata",
					0);
		}
		return conn;
	}

	@Override
	public void actionPerformed(ActionEvent ae) {

		Connection conn = baglan();

		if (ae.getActionCommand().equals("ekle")) {
			try {

				if (jtf1.getText().length() > 0 && jtf2.getText().length() > 0) {
					int ort = Integer.parseInt(jtf2.getText());
					String sql = "insert into notlistesi(no,ort) values(?,?);";
					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setString(1, jtf1.getText());
					ps.setInt(2, ort);
					ps.executeUpdate();

					jtf1.setText("");
					jtf2.setText("");

				}
			} catch (Exception ex) {
			}
		} else {

			if (jl1.getSelectedIndex() > -1) {

				try {
					int secilen = lmid.get(jl1.getSelectedIndex()); // idnot
																	// karsiligi
					String sql = "delete from notlistesi where idnot=?;";

					PreparedStatement ps = conn.prepareStatement(sql);
					ps.setInt(1, secilen);
					ps.executeUpdate();
				} catch (Exception ex) {
				}

			}

		}

		try {
			conn.close();
		} catch (Exception ex) {
		}

		verigetir();

	}

	public static void main(String[] args) {

		new ornek2();

	}

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

import java.awt.event.*;

import java.awt.*;

import javax.swing.*;

import java.sql.*;

public class ornek2 implements ActionListener {

JList<String> jl1, jl2, jl3;

DefaultListModel<String> lm1, lm2, lm3;

DefaultListModel<Integer> lmid;

JTextField jtf1, jtf2;

public ornek2() {

JFrame jfrm = new JFrame("ornek-2 veritabani");

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new GridLayout(1, 3));

jfrm.setSize(200, 220);

JPanel jpn = new JPanel();

lm1 = new DefaultListModel<String>();

jl1 = new JList<String>(lm1);

jtf1 = new JTextField();

jtf1.setPreferredSize(new Dimension(55, 20));

JScrollPane jscp = new JScrollPane(jl1);

jscp.setPreferredSize(new Dimension(55, 150));

JButton jbtn1 = new JButton("Ekle");

jbtn1.addActionListener(this);

jbtn1.setActionCommand("ekle");

jpn.add(jscp);

jpn.add(jtf1);

jpn.add(jbtn1);

jfrm.add(jpn);

jpn = new JPanel();

lm2 = new DefaultListModel<String>();

jl2 = new JList<String>(lm2);

jtf2 = new JTextField();

jtf2.setPreferredSize(new Dimension(55, 20));

jscp = new JScrollPane(jl2);

jscp.setPreferredSize(new Dimension(55, 150));

JButton jbtn2 = new JButton("Sil");

jbtn2.addActionListener(this);

jpn.add(jscp);

jpn.add(jtf2);

jpn.add(jbtn2);

jfrm.add(jpn);

jpn = new JPanel();

lm3 = new DefaultListModel<String>();

jl3 = new JList<String>(lm3);

jscp = new JScrollPane(jl3);

jscp.setPreferredSize(new Dimension(55, 150));

jpn.add(jscp);

jfrm.add(jpn);

verigetir();

jfrm.setVisible(true);

}

private void verigetir() {

Connection conn = baglan();

try {

String sql = "select idnot,no,ort from notlistesi;";

Statement st = conn.createStatement();

ResultSet rs = st.executeQuery(sql);

lm1.clear();

lm2.clear();

lm3.clear();

lmid = new DefaultListModel<Integer>();

while (rs.next()) {

lmid.addElement(rs.getInt("idnot")); // int, silmek icin

lm1.addElement(rs.getString("no"));

lm2.addElement(rs.getString("ort"));

int ort = rs.getInt("ort");

lm3.addElement(harfgetir(ort));

}

} catch (Exception ex) {

}

try {

conn.close();

} catch (Exception ex) {

}

public String harfgetir(int ort) {

String[] harfler = { "AA", "BA", "BB", "CB", "CC", "DC", "DD", "FD" };

int[] sinir = { 90, 80, 70, 60, 50, 40, 35, 30 };

for (int i = 0; i < harfler.length; i++) {

if (ort >= sinir[i])

return harfler[i];

}

return "FF";

}

public Connection baglan() {

Connection conn = null;

try {

Class.forName("org.sqlite.JDBC");

conn = DriverManager.getConnection("jdbc:sqlite:ornek2.db");

} catch (Exception ex) {

JOptionPane.showMessageDialog(null, "Bağlantı yapılamadı!", "Hata",

0);

}

return conn;

}

@Override

public void actionPerformed(ActionEvent ae) {

Connection conn = baglan();

if (ae.getActionCommand().equals("ekle")) {

try {

if (jtf1.getText().length() > 0 && jtf2.getText().length() > 0) {

int ort = Integer.parseInt(jtf2.getText());

String sql = "insert into notlistesi(no,ort) values(?,?);";

PreparedStatement ps = conn.prepareStatement(sql);

ps.setString(1, jtf1.getText());

ps.setInt(2, ort);

ps.executeUpdate();

jtf1.setText("");

jtf2.setText("");

}

} catch (Exception ex) {

}

} else {

if (jl1.getSelectedIndex() > -1) {

try {

int secilen = lmid.get(jl1.getSelectedIndex()); // idnot

// karsiligi

String sql = "delete from notlistesi where idnot=?;";

PreparedStatement ps = conn.prepareStatement(sql);

ps.setInt(1, secilen);

ps.executeUpdate();

} catch (Exception ex) {

}

try {

conn.close();

} catch (Exception ex) {

}

verigetir();

}

public static void main(String[] args) {

new ornek2();

}

JAVA-2 YO2015 5. Hafta Uygulamaları

Okumaya devam et

Java-2 – YO2015 – Hafta – 4

21 Temmuz 201521 Temmuz 2015 tarihinde gönderilmiş caglar tarafından

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class ornek1 implements ActionListener {

	DefaultListModel<String> lad, lvize, lfinal, lort, lharf;
	JList<String> jls1, jls2, jls3, jls4, jls5;
	JTextField jtf_ad, jtf_vize, jtf_final;
	JLabel jlab_gec, jlab_kal;

	String[] harfler = { "AA", "BA", "BB", "CB", "CC", "DC", "DD", "FD" };
	int[] sinirlar = { 90, 80, 70, 60, 50, 40, 35, 30 };

	public ornek1() {
		JFrame jfrm = new JFrame("Hafta-4, Not Listesi");
		jfrm.setSize(550, 240);
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new GridLayout(1, 5));

		JPanel jpn = new JPanel();
		jfrm.add(jpn);
		JLabel jlab = new JLabel("Ad");
		jpn.add(jlab);

		lad = new DefaultListModel<String>();
		jls1 = new JList<String>(lad);
		JScrollPane jscp1 = new JScrollPane(jls1);
		jscp1.setPreferredSize(new Dimension(100, 130));
		jpn.add(jscp1);
		jtf_ad = new JTextField(9);
		jpn.add(jtf_ad);
		JButton jbtn = new JButton("Ekle");
		jbtn.setActionCommand("ekle");
		jbtn.addActionListener(this);
		jpn.add(jbtn);

		jpn = new JPanel();
		jfrm.add(jpn);
		jlab = new JLabel("Vize");
		jpn.add(jlab);
		lvize = new DefaultListModel<String>();
		jls2 = new JList<String>(lvize);
		jscp1 = new JScrollPane(jls2);
		jscp1.setPreferredSize(new Dimension(100, 130));
		jpn.add(jscp1);
		jtf_vize = new JTextField(9);
		jpn.add(jtf_vize);
		jbtn = new JButton("Sil");
		jbtn.addActionListener(this);
		jpn.add(jbtn);

		jpn = new JPanel();
		jfrm.add(jpn);
		jlab = new JLabel("Final");
		jpn.add(jlab);
		lfinal = new DefaultListModel<String>();
		jls3 = new JList<String>(lfinal);
		jscp1 = new JScrollPane(jls3);
		jscp1.setPreferredSize(new Dimension(100, 130));
		jpn.add(jscp1);
		jtf_final = new JTextField(9);
		jpn.add(jtf_final);

		jpn = new JPanel();
		jfrm.add(jpn);
		jlab = new JLabel("Ortalama");
		jpn.add(jlab);
		lort = new DefaultListModel<String>();
		jls4 = new JList<String>(lort);
		jscp1 = new JScrollPane(jls4);
		jscp1.setPreferredSize(new Dimension(100, 130));
		jpn.add(jscp1);
		jlab_gec = new JLabel("Geçen: 0");
		jpn.add(jlab_gec);

		jpn = new JPanel();
		jfrm.add(jpn);
		jlab = new JLabel("Harf");
		jpn.add(jlab);
		lharf = new DefaultListModel<String>();
		jls5 = new JList<String>(lharf);
		jscp1 = new JScrollPane(jls5);
		jscp1.setPreferredSize(new Dimension(100, 130));
		jpn.add(jscp1);
		jlab_kal = new JLabel("Kalan: 0");
		jpn.add(jlab_kal);

		jfrm.setVisible(true);
	}

	@Override
	public void actionPerformed(ActionEvent ae) {

		if (ae.getActionCommand().equals("ekle")) {
			// ekleme
			try {

				if (jtf_ad.getText().length() > 0
						&& jtf_vize.getText().length() > 0
						&& jtf_final.getText().length() > 0) {
					int vizenot = Integer.parseInt(jtf_vize.getText());
					int finalnot = Integer.parseInt(jtf_final.getText());

					if (vizenot >= 0 && vizenot <= 100 && finalnot >= 0
							&& finalnot <= 100) {
						double ort = vizenot * 0.4 + finalnot * 0.6;

						int not_ort = (int) Math.round(ort); // yuvarlama

						lad.addElement(jtf_ad.getText());
						lvize.addElement(jtf_vize.getText());
						lfinal.addElement(jtf_final.getText());
						lort.addElement(ort + "");
						lharf.addElement(harfhesapla(not_ort));
						jtf_ad.setText("");
						jtf_vize.setText("");
						jtf_final.setText("");
					}

				}

			} catch (Exception ex) {

			}

		} else {
			// silme
			int secilen=jls1.getSelectedIndex();
			if(secilen>-1)
			{
				lad.remove(secilen);
				lvize.remove(secilen);
				lfinal.remove(secilen);
				lort.remove(secilen);
				lharf.remove(secilen);
			}			
		}
		gecenkalan();
	}

	private void gecenkalan()
	{
		int gecen=0;
		int kalan=0;
		
		for(int i=0;i<lort.size();i++)
		{
			
			double ort = Double.parseDouble(lort.get(i));
			int not_ort=(int)Math.round(ort);
			
			if(not_ort>=50)
				gecen++;
			else
				kalan++;
			
		}
		
		
		jlab_gec.setText("Geçen: "+gecen);
		jlab_kal.setText("Kalan: "+kalan);
	}
	private String harfhesapla(int ort) {
		for (int i = 0; i < sinirlar.length; i++) {
			if (ort >= sinirlar[i])
				return harfler[i];
		}
		return "FF";
	}

	public static void main(String[] args) {
		new ornek1();
	}

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class ornek1 implements ActionListener {

DefaultListModel<String> lad, lvize, lfinal, lort, lharf;

JList<String> jls1, jls2, jls3, jls4, jls5;

JTextField jtf_ad, jtf_vize, jtf_final;

JLabel jlab_gec, jlab_kal;

String[] harfler = { "AA", "BA", "BB", "CB", "CC", "DC", "DD", "FD" };

int[] sinirlar = { 90, 80, 70, 60, 50, 40, 35, 30 };

public ornek1() {

JFrame jfrm = new JFrame("Hafta-4, Not Listesi");

jfrm.setSize(550, 240);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new GridLayout(1, 5));

JPanel jpn = new JPanel();

jfrm.add(jpn);

JLabel jlab = new JLabel("Ad");

jpn.add(jlab);

lad = new DefaultListModel<String>();

jls1 = new JList<String>(lad);

JScrollPane jscp1 = new JScrollPane(jls1);

jscp1.setPreferredSize(new Dimension(100, 130));

jpn.add(jscp1);

jtf_ad = new JTextField(9);

jpn.add(jtf_ad);

JButton jbtn = new JButton("Ekle");

jbtn.setActionCommand("ekle");

jbtn.addActionListener(this);

jpn.add(jbtn);

jpn = new JPanel();

jfrm.add(jpn);

jlab = new JLabel("Vize");

jpn.add(jlab);

lvize = new DefaultListModel<String>();

jls2 = new JList<String>(lvize);

jscp1 = new JScrollPane(jls2);

jscp1.setPreferredSize(new Dimension(100, 130));

jpn.add(jscp1);

jtf_vize = new JTextField(9);

jpn.add(jtf_vize);

jbtn = new JButton("Sil");

jbtn.addActionListener(this);

jpn.add(jbtn);

jpn = new JPanel();

jfrm.add(jpn);

jlab = new JLabel("Final");

jpn.add(jlab);

lfinal = new DefaultListModel<String>();

jls3 = new JList<String>(lfinal);

jscp1 = new JScrollPane(jls3);

jscp1.setPreferredSize(new Dimension(100, 130));

jpn.add(jscp1);

jtf_final = new JTextField(9);

jpn.add(jtf_final);

jpn = new JPanel();

jfrm.add(jpn);

jlab = new JLabel("Ortalama");

jpn.add(jlab);

lort = new DefaultListModel<String>();

jls4 = new JList<String>(lort);

jscp1 = new JScrollPane(jls4);

jscp1.setPreferredSize(new Dimension(100, 130));

jpn.add(jscp1);

jlab_gec = new JLabel("Geçen: 0");

jpn.add(jlab_gec);

jpn = new JPanel();

jfrm.add(jpn);

jlab = new JLabel("Harf");

jpn.add(jlab);

lharf = new DefaultListModel<String>();

jls5 = new JList<String>(lharf);

jscp1 = new JScrollPane(jls5);

jscp1.setPreferredSize(new Dimension(100, 130));

jpn.add(jscp1);

jlab_kal = new JLabel("Kalan: 0");

jpn.add(jlab_kal);

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent ae) {

if (ae.getActionCommand().equals("ekle")) {

// ekleme

try {

if (jtf_ad.getText().length() > 0

&& jtf_vize.getText().length() > 0

&& jtf_final.getText().length() > 0) {

int vizenot = Integer.parseInt(jtf_vize.getText());

int finalnot = Integer.parseInt(jtf_final.getText());

if (vizenot >= 0 && vizenot <= 100 && finalnot >= 0

&& finalnot <= 100) {

double ort = vizenot * 0.4 + finalnot * 0.6;

int not_ort = (int) Math.round(ort); // yuvarlama

lad.addElement(jtf_ad.getText());

lvize.addElement(jtf_vize.getText());

lfinal.addElement(jtf_final.getText());

lort.addElement(ort + "");

lharf.addElement(harfhesapla(not_ort));

jtf_ad.setText("");

jtf_vize.setText("");

jtf_final.setText("");

}

} catch (Exception ex) {

}

} else {

// silme

int secilen=jls1.getSelectedIndex();

if(secilen>-1)

{

lad.remove(secilen);

lvize.remove(secilen);

lfinal.remove(secilen);

lort.remove(secilen);

lharf.remove(secilen);

}

gecenkalan();

}

private void gecenkalan()

{

int gecen=0;

int kalan=0;

for(int i=0;i<lort.size();i++)

{

double ort = Double.parseDouble(lort.get(i));

int not_ort=(int)Math.round(ort);

if(not_ort>=50)

gecen++;

else

kalan++;

}

jlab_gec.setText("Geçen: "+gecen);

jlab_kal.setText("Kalan: "+kalan);

}

private String harfhesapla(int ort) {

for (int i = 0; i < sinirlar.length; i++) {

if (ort >= sinirlar[i])

return harfler[i];

}

return "FF";

}

public static void main(String[] args) {

new ornek1();

}

import java.awt.event.*;
import java.awt.*;
import java.util.Arrays;

import javax.swing.*;

public class ornek2 implements ActionListener {

	JRadioButton[] jrb = new JRadioButton[6];
	JTextField jtf;
	String[] hex = { "A", "B", "C", "D", "E", "F" };

	public ornek2() {
		JFrame jfrm = new JFrame("Hafta-4, Dönüşüm");
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new FlowLayout());
		jfrm.setSize(200, 200);

		jtf = new JTextField(15);
		jfrm.add(jtf);

		String[] icerik = { "İkilik", "Onluk", "Onaltılık" };

		JPanel jpn = new JPanel();
		jpn.setLayout(new GridLayout(3, 2));

		jfrm.add(jpn);
		ButtonGroup bg1 = new ButtonGroup();
		ButtonGroup bg2 = new ButtonGroup();

		for (int i = 0; i < 3; i++) {
			jrb[i] = new JRadioButton(icerik[i]);
			bg1.add(jrb[i]);
			jpn.add(jrb[i]);
			jrb[i + 3] = new JRadioButton(icerik[i]);
			bg2.add(jrb[i + 3]);
			jpn.add(jrb[i + 3]);

		}

		jrb[0].setSelected(true);
		jrb[3].setSelected(true);

		JButton jbtn = new JButton("Dönüştür");
		jbtn.addActionListener(this);
		jfrm.add(jbtn);

		jfrm.setVisible(true);
	}

	@Override
	public void actionPerformed(ActionEvent e) {

		int[] secilen = { 0, 0 };
		int k = 0;
		for (int i = 0; i < jrb.length; i++) {
			if (jrb[i].isSelected())
				secilen[k++] = i;
		}

		if (jtf.getText().length() > 0) {

			String veri = jtf.getText().toUpperCase();

			if (!kontrol(secilen[0], veri))
				JOptionPane.showMessageDialog(null,
						"Girilen sayı seçilen formata uygun değil");
			else {

				String sonuc = "";

				if (secilen[0] == 0 && secilen[1] == 4) {
					// ikilik --> onluk
					sonuc = bin2dec(veri);
				}
				if (secilen[0] == 1 && secilen[1] == 3) {
					// onluk --> ikilik
					sonuc = dec2bin(veri);
				}
				if (secilen[0] == 1 && secilen[1] == 5) {
					// onluk --> onaltilik
					sonuc = dec2hex(veri);
				}
				if (secilen[0] == 2 && secilen[1] == 4) {
					// onaltilik --> onluk
					sonuc = hex2dec(veri);
				}
				if (secilen[0] == 0 && secilen[1] == 5) {
					// ikilik --> onaltilik
					sonuc = bin2dec(veri);
					sonuc = dec2hex(sonuc);
				}
				if (secilen[0] == 2 && secilen[1] == 3) {
					//onaltilik --> ikilik
					sonuc = hex2dec(veri);
					sonuc = dec2bin(sonuc);
				}

				jtf.setText(sonuc);
			}

		}
	}

	private String hex2dec(String deger) {

		int sonuc = 0;
		for (int index = 0; index < deger.length(); index++) {

			int ind = Arrays.binarySearch(hex, (deger.charAt(index) + ""));

			int sayi = 0;
			if (ind > -1)
				sayi = 10 + ind;
			else
				sayi = Integer.parseInt(deger.charAt(index) + "");

			sonuc += sayi * (int) Math.pow(16, deger.length() - index - 1);
		}

		return sonuc + "";
	}

	private String dec2hex(String deger) {
		String sonuc = "";
		int veri = Integer.parseInt(deger);

		while (veri > 0) {
			int kalan = veri % 16;
			veri = (veri - kalan) / 16;

			if (kalan > 9)
				sonuc = hex[kalan % 10] + sonuc;
			else
				sonuc = kalan + sonuc;
		}

		return sonuc;
	}

	private String dec2bin(String deger) {

		String sonuc = "";
		int veri = Integer.parseInt(deger);

		while (veri > 0) {
			int kalan = veri % 2;
			veri = (veri - kalan) / 2;
			sonuc = kalan + sonuc;
		}
		return sonuc;

	}

	private String bin2dec(String deger) {
		int sonuc = 0;
		for (int index = 0; index < deger.length(); index++) {

			int sayi = Integer.parseInt(deger.charAt(index) + "");

			sonuc += sayi * (int) Math.pow(2, deger.length() - index - 1);
		}

		return sonuc + "";

	}

	private boolean kontrol(int tip, String deger) {
		boolean durum = true;

		for (int index = 0; index < deger.length(); index++) {

			String veri = deger.charAt(index) + "";

			if (tip == 0) {

				if (!(veri.equals("0") || veri.equals("1")))
					return false;

			} else if (tip == 1) {
				try {
					Integer.parseInt(veri); // sayiya donustur donusmezse sayi
											// degil
				} catch (Exception ex) {
					return false;
				}

			} else {
				// onaltilik

				if (!(veri.equals("A") || veri.equals("B") || veri.equals("C")
						|| veri.equals("D") || veri.equals("E") || veri
							.equals("F"))) {

					try {
						Integer.parseInt(veri); // sayiya donustur donusmezse
												// sayi
												// degil
					} catch (Exception ex) {
						return false;
					}

				}

			}
		}

		return durum;
	}

	public static void main(String[] args) {

		new ornek2();

	}

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

import java.awt.event.*;

import java.awt.*;

import java.util.Arrays;

import javax.swing.*;

public class ornek2 implements ActionListener {

JRadioButton[] jrb = new JRadioButton[6];

JTextField jtf;

String[] hex = { "A", "B", "C", "D", "E", "F" };

public ornek2() {

JFrame jfrm = new JFrame("Hafta-4, Dönüşüm");

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new FlowLayout());

jfrm.setSize(200, 200);

jtf = new JTextField(15);

jfrm.add(jtf);

String[] icerik = { "İkilik", "Onluk", "Onaltılık" };

JPanel jpn = new JPanel();

jpn.setLayout(new GridLayout(3, 2));

jfrm.add(jpn);

ButtonGroup bg1 = new ButtonGroup();

ButtonGroup bg2 = new ButtonGroup();

for (int i = 0; i < 3; i++) {

jrb[i] = new JRadioButton(icerik[i]);

bg1.add(jrb[i]);

jpn.add(jrb[i]);

jrb[i + 3] = new JRadioButton(icerik[i]);

bg2.add(jrb[i + 3]);

jpn.add(jrb[i + 3]);

}

jrb[0].setSelected(true);

jrb[3].setSelected(true);

JButton jbtn = new JButton("Dönüştür");

jbtn.addActionListener(this);

jfrm.add(jbtn);

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent e) {

int[] secilen = { 0, 0 };

int k = 0;

for (int i = 0; i < jrb.length; i++) {

if (jrb[i].isSelected())

secilen[k++] = i;

}

if (jtf.getText().length() > 0) {

String veri = jtf.getText().toUpperCase();

if (!kontrol(secilen[0], veri))

JOptionPane.showMessageDialog(null,

"Girilen sayı seçilen formata uygun değil");

else {

String sonuc = "";

if (secilen[0] == 0 && secilen[1] == 4) {

// ikilik --> onluk

sonuc = bin2dec(veri);

}

if (secilen[0] == 1 && secilen[1] == 3) {

// onluk --> ikilik

sonuc = dec2bin(veri);

}

if (secilen[0] == 1 && secilen[1] == 5) {

// onluk --> onaltilik

sonuc = dec2hex(veri);

}

if (secilen[0] == 2 && secilen[1] == 4) {

// onaltilik --> onluk

sonuc = hex2dec(veri);

}

if (secilen[0] == 0 && secilen[1] == 5) {

// ikilik --> onaltilik

sonuc = bin2dec(veri);

sonuc = dec2hex(sonuc);

}

if (secilen[0] == 2 && secilen[1] == 3) {

//onaltilik --> ikilik

sonuc = hex2dec(veri);

sonuc = dec2bin(sonuc);

}

jtf.setText(sonuc);

}

private String hex2dec(String deger) {

int sonuc = 0;

for (int index = 0; index < deger.length(); index++) {

int ind = Arrays.binarySearch(hex, (deger.charAt(index) + ""));

int sayi = 0;

if (ind > -1)

sayi = 10 + ind;

else

sayi = Integer.parseInt(deger.charAt(index) + "");

sonuc += sayi * (int) Math.pow(16, deger.length() - index - 1);

}

return sonuc + "";

}

private String dec2hex(String deger) {

String sonuc = "";

int veri = Integer.parseInt(deger);

while (veri > 0) {

int kalan = veri % 16;

veri = (veri - kalan) / 16;

if (kalan > 9)

sonuc = hex[kalan % 10] + sonuc;

else

sonuc = kalan + sonuc;

}

return sonuc;

}

private String dec2bin(String deger) {

String sonuc = "";

int veri = Integer.parseInt(deger);

while (veri > 0) {

int kalan = veri % 2;

veri = (veri - kalan) / 2;

sonuc = kalan + sonuc;

}

return sonuc;

}

private String bin2dec(String deger) {

int sonuc = 0;

for (int index = 0; index < deger.length(); index++) {

int sayi = Integer.parseInt(deger.charAt(index) + "");