Etiket: JTextField

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();
	}

}

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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 – 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();
	}

}

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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();
	}

}

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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();

	}

}

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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();
	}

}

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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();

	}

}

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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();

}

Okumaya devam et

Java-2 – YO2015 – Hafta – 3

7 Temmuz 20157 Temmuz 2015 tarihinde gönderilmiş caglar tarafından

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

class soru {
	String soru;
	String[] cevaplar;
	int dogrucevap;
}

public class ornek1 implements ActionListener {

	JRadioButton[] jrb;
	JLabel jlab;
	soru[] sor = new soru[2];
	int sorusirasi = 0;

	public ornek1() {

		sor[0] = new soru();
		sor[0].soru = "Türkiye'nin başkenti neresidir?";
		sor[0].cevaplar = new String[] { "Ankara", "İzmir", "Hatay",
				"İstanbul", "Adana" };
		sor[0].dogrucevap = 0;

		sor[1] = new soru();
		sor[1].soru = "CPU nedir?";
		sor[1].cevaplar = new String[] { "Rastgele erişilebilir bellek", "Merkezi işlem birimi", "Çözünürlük",
				"Klavye", "Projeksiyon" };
		sor[1].dogrucevap = 1;

		JFrame jfrm = new JFrame("hafta-3,ornek-1");
		jfrm.setSize(250, 250);
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new GridLayout(7, 1));

		jlab = new JLabel();
		JPanel jpn = new JPanel();
		jpn.setLayout(new FlowLayout(FlowLayout.LEFT));
		jpn.add(jlab);
		jfrm.add(jpn);
		jrb = new JRadioButton[5];

		ButtonGroup bg = new ButtonGroup();
		for (int i = 0; i < jrb.length; i++) {
			jpn = new JPanel();
			jpn.setLayout(new FlowLayout(FlowLayout.LEFT));
			jrb[i] = new JRadioButton();
			jpn.add(jrb[i]);
			bg.add(jrb[i]);
			jfrm.add(jpn);
		}
		jrb[0].setSelected(true);

		jpn = new JPanel();
		JButton jbtn = new JButton("Kontrol Et");
		jbtn.addActionListener(this);
		jpn.add(jbtn);
		jfrm.add(jpn);
		soruyukle();
		jfrm.setVisible(true);
	}

	@Override
	public void actionPerformed(ActionEvent arg0) {
		int secilen = -1;
		for (int i = 0; i < jrb.length; i++) {
			if (jrb[i].isSelected()) {
				secilen = i;
				break;
			}
		}
		if (secilen > -1) {
			String sonuc = "Cevap hatalı!";

			boolean durum = false;
			if (sor[sorusirasi].dogrucevap == secilen) {
				sonuc = "Cevap dogru!";
				durum = true;
			}
			JOptionPane.showMessageDialog(null, sonuc);

			if (durum) {
				sorusirasi++;
				soruyukle();
			}
		}

	}

	private void soruyukle() {

		if (sor.length > sorusirasi) {

			jlab.setText(sor[sorusirasi].soru);

			for (int i = 0; i < jrb.length; i++) {
				jrb[i].setText(sor[sorusirasi].cevaplar[i]);
			}

			jrb[0].setSelected(true);

		} else
			sorusirasi--;
	}

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

		new ornek1();

	}
}

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import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

class soru {

String soru;

String[] cevaplar;

int dogrucevap;

}

public class ornek1 implements ActionListener {

JRadioButton[] jrb;

JLabel jlab;

soru[] sor = new soru[2];

int sorusirasi = 0;

public ornek1() {

sor[0] = new soru();

sor[0].soru = "Türkiye'nin başkenti neresidir?";

sor[0].cevaplar = new String[] { "Ankara", "İzmir", "Hatay",

"İstanbul", "Adana" };

sor[0].dogrucevap = 0;

sor[1] = new soru();

sor[1].soru = "CPU nedir?";

sor[1].cevaplar = new String[] { "Rastgele erişilebilir bellek", "Merkezi işlem birimi", "Çözünürlük",

"Klavye", "Projeksiyon" };

sor[1].dogrucevap = 1;

JFrame jfrm = new JFrame("hafta-3,ornek-1");

jfrm.setSize(250, 250);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

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

jlab = new JLabel();

JPanel jpn = new JPanel();

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

jpn.add(jlab);

jfrm.add(jpn);

jrb = new JRadioButton[5];

ButtonGroup bg = new ButtonGroup();

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

jpn = new JPanel();

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

jrb[i] = new JRadioButton();

jpn.add(jrb[i]);

bg.add(jrb[i]);

jfrm.add(jpn);

}

jrb[0].setSelected(true);

jpn = new JPanel();

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

jbtn.addActionListener(this);

jpn.add(jbtn);

jfrm.add(jpn);

soruyukle();

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent arg0) {

int secilen = -1;

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

if (jrb[i].isSelected()) {

secilen = i;

break;

}

if (secilen > -1) {

String sonuc = "Cevap hatalı!";

boolean durum = false;

if (sor[sorusirasi].dogrucevap == secilen) {

sonuc = "Cevap dogru!";

durum = true;

}

JOptionPane.showMessageDialog(null, sonuc);

if (durum) {

sorusirasi++;

soruyukle();

}

private void soruyukle() {

if (sor.length > sorusirasi) {

jlab.setText(sor[sorusirasi].soru);

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

jrb[i].setText(sor[sorusirasi].cevaplar[i]);

}

jrb[0].setSelected(true);

} else

sorusirasi--;

}

/**

* @param args

public static void main(String[] args) {

new ornek1();

}

import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
public class ornek2 implements ActionListener {

	JCheckBox[] jcb;
	JLabel jlab;

	public ornek2() {

		String[] secim = new String[] { "Seçim1", "Seçim2", "Seçim3", "Seçim4" };
		JFrame jfrm = new JFrame("hafta-3, ornek2");
		jfrm.setSize(200, 200);
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new GridLayout((secim.length + 1), 1));

		jcb = new JCheckBox[secim.length];

		for (int i = 0; i < jcb.length; i++) {
			jcb[i] = new JCheckBox(secim[i]);
			jfrm.add(jcb[i]);
			jcb[i].addActionListener(this);
		}

		jlab = new JLabel("Seçim yapınız!");
		jfrm.add(jlab);
		jfrm.setVisible(true);
	}

	@Override
	public void actionPerformed(ActionEvent e) {

		String sonuc = "";

		for (int i = 0; i < jcb.length; i++) {
			if (jcb[i].isSelected()){
				if(sonuc.length()>0) sonuc+=";";	
				sonuc += jcb[i].getText();
		
			}
		}
		if (sonuc.length() > 0)
			jlab.setText(sonuc);
		else
			jlab.setText("Seçim Yok!");
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new ornek2();
	}

}

import java.awt.event.*;

import java.awt.*;

import javax.swing.*;

public class ornek2 implements ActionListener {

JCheckBox[] jcb;

JLabel jlab;

public ornek2() {

String[] secim = new String[] { "Seçim1", "Seçim2", "Seçim3", "Seçim4" };

JFrame jfrm = new JFrame("hafta-3, ornek2");

jfrm.setSize(200, 200);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new GridLayout((secim.length + 1), 1));

jcb = new JCheckBox[secim.length];

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

jcb[i] = new JCheckBox(secim[i]);

jfrm.add(jcb[i]);

jcb[i].addActionListener(this);

}

jlab = new JLabel("Seçim yapınız!");

jfrm.add(jlab);

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent e) {

String sonuc = "";

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

if (jcb[i].isSelected()){

if(sonuc.length()>0) sonuc+=";";

sonuc += jcb[i].getText();

}

if (sonuc.length() > 0)

jlab.setText(sonuc);

else

jlab.setText("Seçim Yok!");

}

/**

* @param args

public static void main(String[] args) {

new ornek2();

}

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

public class ornek3 implements ActionListener, ListSelectionListener {

	JTextField jtf;
	JComboBox<String> jcb;

	DefaultListModel<String> lurun, lmiktar;
	JList<String> jls1, jls2;

	public ornek3() {

		String[] urunler = new String[] { "Elma", "Karpuz", "Kiraz", "Erik" };

		JFrame jfrm = new JFrame("hafta-3, ornek-3");
		jfrm.setSize(350, 200);
		jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jfrm.setLayout(new GridLayout(1, 2));
		JPanel jpn1 = new JPanel();
		JPanel jpn2 = new JPanel();
		jfrm.add(jpn1);
		jfrm.add(jpn2);
		lurun = new DefaultListModel<String>();
		lmiktar = new DefaultListModel<String>();
		jls1 = new JList<String>(lurun);
		jls2 = new JList<String>(lmiktar);
		JScrollPane jscp1 = new JScrollPane(jls1);
		JScrollPane jscp2 = new JScrollPane(jls2);
		jscp1.setPreferredSize(new Dimension(160, 130));
		jscp2.setPreferredSize(new Dimension(160, 130));
		jpn1.add(jscp1);
		jpn2.add(jscp2);
		jtf = new JTextField();
		jcb = new JComboBox<String>(urunler);
		jpn1.add(jcb);
		jcb.setPreferredSize(new Dimension(160, 20));
		jpn2.add(jtf);
		jtf.setPreferredSize(new Dimension(160, 20));

		JButton jbtn1 = new JButton("Ekle");
		JButton jbtn2 = new JButton("Kapat");
		jbtn1.setPreferredSize(new Dimension(160, 30));
		jbtn2.setPreferredSize(new Dimension(160, 30));
		jpn1.add(jbtn1);
		jpn2.add(jbtn2);

		jls1.addListSelectionListener(this);
		jls2.addListSelectionListener(this);

		jbtn1.addActionListener(this);
		jbtn2.addActionListener(this);
		jbtn1.setActionCommand("ekle");
		jfrm.setVisible(true);

	}

	@Override
	public void actionPerformed(ActionEvent e) {

		if (e.getActionCommand().equals("ekle")) {
			if (jtf.getText().length() > 0 && jcb.getSelectedIndex() > -1) {
				try {

					Integer.parseInt(jtf.getText());
					lurun.addElement(jcb.getSelectedItem().toString());
					lmiktar.addElement(jtf.getText());

					jtf.setText("");
					jcb.setSelectedIndex(0);

				} catch (Exception ex) {

				}

			}

		} else
			System.exit(0); // programi kapatmak icin
	}

	@Override
	public void valueChanged(ListSelectionEvent e) {
		
		JList<String> jl=(JList<String>)e.getSource();
		int secilen=jl.getSelectedIndex();
		
		if(secilen>-1)
		{
			jls1.setSelectedIndex(secilen);
			jls2.setSelectedIndex(secilen);
		}
		
		
		
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new ornek3();

	}

}

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import java.awt.event.*;

import java.awt.*;

import javax.swing.*;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

public class ornek3 implements ActionListener, ListSelectionListener {

JTextField jtf;

JComboBox<String> jcb;

DefaultListModel<String> lurun, lmiktar;

JList<String> jls1, jls2;

public ornek3() {

String[] urunler = new String[] { "Elma", "Karpuz", "Kiraz", "Erik" };

JFrame jfrm = new JFrame("hafta-3, ornek-3");

jfrm.setSize(350, 200);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

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

JPanel jpn1 = new JPanel();

JPanel jpn2 = new JPanel();

jfrm.add(jpn1);

jfrm.add(jpn2);

lurun = new DefaultListModel<String>();

lmiktar = new DefaultListModel<String>();

jls1 = new JList<String>(lurun);

jls2 = new JList<String>(lmiktar);

JScrollPane jscp1 = new JScrollPane(jls1);

JScrollPane jscp2 = new JScrollPane(jls2);

jscp1.setPreferredSize(new Dimension(160, 130));

jscp2.setPreferredSize(new Dimension(160, 130));

jpn1.add(jscp1);

jpn2.add(jscp2);

jtf = new JTextField();

jcb = new JComboBox<String>(urunler);

jpn1.add(jcb);

jcb.setPreferredSize(new Dimension(160, 20));

jpn2.add(jtf);

jtf.setPreferredSize(new Dimension(160, 20));

JButton jbtn1 = new JButton("Ekle");

JButton jbtn2 = new JButton("Kapat");

jbtn1.setPreferredSize(new Dimension(160, 30));

jbtn2.setPreferredSize(new Dimension(160, 30));

jpn1.add(jbtn1);

jpn2.add(jbtn2);

jls1.addListSelectionListener(this);

jls2.addListSelectionListener(this);

jbtn1.addActionListener(this);

jbtn2.addActionListener(this);

jbtn1.setActionCommand("ekle");

jfrm.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent e) {

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

if (jtf.getText().length() > 0 && jcb.getSelectedIndex() > -1) {

try {

Integer.parseInt(jtf.getText());

lurun.addElement(jcb.getSelectedItem().toString());

lmiktar.addElement(jtf.getText());

jtf.setText("");

jcb.setSelectedIndex(0);

} catch (Exception ex) {

}

} else

System.exit(0); // programi kapatmak icin

}

@Override

public void valueChanged(ListSelectionEvent e) {

JList<String> jl=(JList<String>)e.getSource();

int secilen=jl.getSelectedIndex();

if(secilen>-1)

{

jls1.setSelectedIndex(secilen);

jls2.setSelectedIndex(secilen);

}

/**

* @param args

public static void main(String[] args) {

new ornek3();

}

Okumaya devam et

Java-2(2015) 5. Hafta Swing Uygulamaları

27 Şubat 2015 tarihinde gönderilmiş caglar tarafından

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

class combo implements ActionListener{
JLabel jlab;

combo()
{

JFrame jfrm = new JFrame("ComboBox ornegi");
jfrm.setSize(200,300);
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jfrm.setLayout(new GridLayout(2,1,10,10));

JPanel jpn = new JPanel();

String[] icerik={"Peynir","Yumurta","Sucuk","Sut"};
JComboBox jcb = new JComboBox(icerik);
jcb.addActionListener(this);

jlab= new JLabel("Seçim Yapınız..");
jpn.add(jcb);
jfrm.add(jpn);
jfrm.add(jlab);

jfrm.setVisible(true);
}

public void actionPerformed(ActionEvent ae)
{
	JComboBox cb =(JComboBox) ae.getSource();
	jlab.setText(cb.getSelectedItem().toString());	

}

public static void main(String[] asdad)
{
new combo();
}

}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

class combo implements ActionListener{

JLabel jlab;

combo()

{

JFrame jfrm = new JFrame("ComboBox ornegi");

jfrm.setSize(200,300);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new GridLayout(2,1,10,10));

JPanel jpn = new JPanel();

String[] icerik={"Peynir","Yumurta","Sucuk","Sut"};

JComboBox jcb = new JComboBox(icerik);

jcb.addActionListener(this);

jlab= new JLabel("Seçim Yapınız..");

jpn.add(jcb);

jfrm.add(jpn);

jfrm.add(jlab);

jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)

{

JComboBox cb =(JComboBox) ae.getSource();

jlab.setText(cb.getSelectedItem().toString());

}

public static void main(String[] asdad)

{

new combo();

}

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

class combo2 {
JLabel jlab;
JTextField jtf;
JComboBox jcb;
JFrame jfrm;
combo2()
{

JFrame jfrm = new JFrame("ComboBox ornegi");
jfrm.setSize(200,300);
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jfrm.setLayout(new GridLayout(3,1,10,10));

JPanel jpn1 = new JPanel();
JPanel jpn2 = new JPanel();
JPanel jpn3 = new JPanel();

String[] icerik={"Peynir","Yumurta","Sucuk","Sut"};
jcb = new JComboBox(icerik);
jcb.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent ae)
{
	JComboBox cb =(JComboBox) ae.getSource();
	jlab.setText(cb.getSelectedItem().toString());	

}


});
jpn1.add(jcb);

jtf = new JTextField(10);
JButton jbtn = new JButton("Ekle");
jbtn.addActionListener( new ActionListener(){

public void actionPerformed(ActionEvent ae)
{
	String veri=jtf.getText();
	if(veri.length()>0)	
		jcb.addItem(veri);
	else
		JOptionPane.showMessageDialog(null,"Boş veri girilemez","Hata",JOptionPane.ERROR_MESSAGE);		
}	


}

);
jpn2.add(jtf);
jpn2.add(jbtn);
jlab= new JLabel("Seçim Yapınız..");
jpn3.add(jlab);
jfrm.add(jpn1);
jfrm.add(jpn2);
jfrm.add(jpn3);

jfrm.setVisible(true);
}

public static void main(String[] asdad)
{
new combo2();
}

}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

class combo2 {

JLabel jlab;

JTextField jtf;

JComboBox jcb;

JFrame jfrm;

combo2()

{

JFrame jfrm = new JFrame("ComboBox ornegi");

jfrm.setSize(200,300);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new GridLayout(3,1,10,10));

JPanel jpn1 = new JPanel();

JPanel jpn2 = new JPanel();

JPanel jpn3 = new JPanel();

String[] icerik={"Peynir","Yumurta","Sucuk","Sut"};

jcb = new JComboBox(icerik);

jcb.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent ae)

{

JComboBox cb =(JComboBox) ae.getSource();

jlab.setText(cb.getSelectedItem().toString());

}

});

jpn1.add(jcb);

jtf = new JTextField(10);

JButton jbtn = new JButton("Ekle");

jbtn.addActionListener( new ActionListener(){

public void actionPerformed(ActionEvent ae)

{

String veri=jtf.getText();

if(veri.length()>0)

jcb.addItem(veri);

else

JOptionPane.showMessageDialog(null,"Boş veri girilemez","Hata",JOptionPane.ERROR_MESSAGE);

}

);

jpn2.add(jtf);

jpn2.add(jbtn);

jlab= new JLabel("Seçim Yapınız..");

jpn3.add(jlab);

jfrm.add(jpn1);

jfrm.add(jpn2);

jfrm.add(jpn3);

jfrm.setVisible(true);

}

public static void main(String[] asdad)

{

new combo2();

}

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

class jlistornek {
JTextField jtf;
DefaultListModel lm;

jlistornek()
{
JFrame jfrm = new JFrame("JList ornegi");
jfrm.setSize(200,400);
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jfrm.setLayout(new GridLayout(3,1,10,10));

JPanel jpn1= new JPanel();
JPanel jpn2= new JPanel();
JPanel jpn3= new JPanel();

//String [] veriler={"abc","xyz"};
lm = new DefaultListModel();

JList jls= new JList(lm);
JScrollPane jscp =new JScrollPane(jls);
jscp.setPreferredSize(new Dimension(120,90));

jtf= new JTextField(10);

JButton jbtn = new JButton("Ekle");
jbtn.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent ae)
{
	String veri =jtf.getText();
	if(veri.length()>0)
	{
		lm.addElement(veri);
		jtf.setText("");
	}

}
});

jpn1.add(jscp);
jpn2.add(jtf); 
jpn3.add(jbtn); 

jfrm.add(jpn1);
jfrm.add(jpn2);
jfrm.add(jpn3);


jfrm.setVisible(true);
}
public static void main(String[] aasdad)
{
new jlistornek();
}


}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

class jlistornek {

JTextField jtf;

DefaultListModel lm;

jlistornek()

{

JFrame jfrm = new JFrame("JList ornegi");

jfrm.setSize(200,400);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jfrm.setLayout(new GridLayout(3,1,10,10));

JPanel jpn1= new JPanel();

JPanel jpn2= new JPanel();

JPanel jpn3= new JPanel();

//String [] veriler={"abc","xyz"};

lm = new DefaultListModel();

JList jls= new JList(lm);

JScrollPane jscp =new JScrollPane(jls);

jscp.setPreferredSize(new Dimension(120,90));

jtf= new JTextField(10);

JButton jbtn = new JButton("Ekle");

jbtn.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent ae)

{

String veri =jtf.getText();

if(veri.length()>0)

{

lm.addElement(veri);

jtf.setText("");

}

});

jpn1.add(jscp);

jpn2.add(jtf);

jpn3.add(jbtn);

jfrm.add(jpn1);

jfrm.add(jpn2);

jfrm.add(jpn3);

jfrm.setVisible(true);

}

public static void main(String[] aasdad)

{

new jlistornek();

}

Okumaya devam et

Java-2(2015) 3. Hafta Swing Uygulamaları

16 Şubat 201516 Şubat 2015 tarihinde gönderilmiş caglar tarafından

import javax.swing.*;

class ilkpencere{


ilkpencere(){

JFrame jfrm = new JFrame("İlk penceremiz");
jfrm.setSize(275,100);
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//JLabel jlab1 = new JLabel("bu bir etiket");
JLabel jlab2 = new JLabel("<html><h1><b>asdasd</b></h1></html>");

//jfrm.add(jlab1); // jfrm.getContentPane.add() // java 1.5 version once
jfrm.add(jlab2);
jfrm.setVisible(true);

}

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

}

import javax.swing.*;

class ilkpencere{

ilkpencere(){

JFrame jfrm = new JFrame("İlk penceremiz");

jfrm.setSize(275,100);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//JLabel jlab1 = new JLabel("bu bir etiket");

JLabel jlab2 = new JLabel("<html><h1><b>asdasd</b></h1></html>");

//jfrm.add(jlab1); // jfrm.getContentPane.add() // java 1.5 version once

jfrm.add(jlab2);

jfrm.setVisible(true);

}

public static void main(String[] asds)

{

new ilkpencere();

}

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

class ornek2{


ornek2(){

JFrame jfrm = new JFrame("İlk penceremiz");
jfrm.setSize(275,100);
jfrm.setLayout(new FlowLayout());
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JLabel jlab1 = new JLabel("bu bir etiket");
JLabel jlab2 = new JLabel("ikinci etiket");

jfrm.add(jlab1);
jfrm.add(jlab2);
jfrm.setVisible(true);

}

public static void main(String[] asds)
{
new ornek2();
}

}

import javax.swing.*;

import java.awt.*;

class ornek2{

ornek2(){

JFrame jfrm = new JFrame("İlk penceremiz");

jfrm.setSize(275,100);

jfrm.setLayout(new FlowLayout());

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JLabel jlab1 = new JLabel("bu bir etiket");

JLabel jlab2 = new JLabel("ikinci etiket");

jfrm.add(jlab1);

jfrm.add(jlab2);

jfrm.setVisible(true);

}

public static void main(String[] asds)

{

new ornek2();

}

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

class ornek3 implements ActionListener{
JLabel jlab1;
ornek3(){

JFrame jfrm = new JFrame("İlk penceremiz");
jfrm.setSize(250,100);
jfrm.setLayout(new FlowLayout());
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jlab1 = new JLabel("bu bir etiket degisecek");
JButton jbtn1 = new JButton("Değiştir");
jbtn1.addActionListener(this);
jfrm.add(jlab1);
jfrm.add(jbtn1);
jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)
{
jlab1.setText("degisti");
}

public static void main(String[] asds)
{
new ornek3();
}

}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

class ornek3 implements ActionListener{

JLabel jlab1;

ornek3(){

JFrame jfrm = new JFrame("İlk penceremiz");

jfrm.setSize(250,100);

jfrm.setLayout(new FlowLayout());

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jlab1 = new JLabel("bu bir etiket degisecek");

JButton jbtn1 = new JButton("Değiştir");

jbtn1.addActionListener(this);

jfrm.add(jlab1);

jfrm.add(jbtn1);

jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)

{

jlab1.setText("degisti");

}

public static void main(String[] asds)

{

new ornek3();

}

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

class ornek4 implements ActionListener{
JLabel jlab1;
JTextField jtf1,jtf2;

ornek4(){

JFrame jfrm = new JFrame("İlk penceremiz");
jfrm.setSize(150,140);
jfrm.setLayout(new FlowLayout());
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jtf1= new JTextField(10);
jtf2= new JTextField(10);

jlab1 = new JLabel("");
JButton jbtn1 = new JButton("Topla");
jbtn1.addActionListener(this);

jfrm.add(jtf1);
jfrm.add(jtf2);
jfrm.add(jlab1);
jfrm.add(jbtn1);
jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)
{
int sayi1,sayi2;
sayi1=Integer.parseInt(jtf1.getText());
sayi2=Integer.parseInt(jtf2.getText());
jlab1.setText("Sonuc:"+(sayi1+sayi2));
}

public static void main(String[] asds)
{
new ornek4();
}

}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

class ornek4 implements ActionListener{

JLabel jlab1;

JTextField jtf1,jtf2;

ornek4(){

JFrame jfrm = new JFrame("İlk penceremiz");

jfrm.setSize(150,140);

jfrm.setLayout(new FlowLayout());

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jtf1= new JTextField(10);

jtf2= new JTextField(10);

jlab1 = new JLabel("");

JButton jbtn1 = new JButton("Topla");

jbtn1.addActionListener(this);

jfrm.add(jtf1);

jfrm.add(jtf2);

jfrm.add(jlab1);

jfrm.add(jbtn1);

jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)

{

int sayi1,sayi2;

sayi1=Integer.parseInt(jtf1.getText());

sayi2=Integer.parseInt(jtf2.getText());

jlab1.setText("Sonuc:"+(sayi1+sayi2));

}

public static void main(String[] asds)

{

new ornek4();

}

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

class ornek5 implements ActionListener{
JLabel jlab1;
JTextField jtf1,jtf2;

ornek5(){

JFrame jfrm = new JFrame("İlk penceremiz");
jfrm.setSize(200,150);
jfrm.setLayout(new FlowLayout());
jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jtf1= new JTextField(10);
jtf2= new JTextField(10);

jlab1 = new JLabel("");
JButton jbtn1 = new JButton("Topla");
JButton jbtn2 = new JButton("Çıkar");
jbtn1.addActionListener(this);
jbtn2.addActionListener(this);

jfrm.add(jtf1);
jfrm.add(jtf2);
jfrm.add(jlab1);
jfrm.add(jbtn1);
jfrm.add(jbtn2);
jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)
{
int sayi1,sayi2;
sayi1=Integer.parseInt(jtf1.getText());
sayi2=Integer.parseInt(jtf2.getText());

	if(ae.getActionCommand().equals("Topla")){
		jlab1.setText("Sonuc:"+(sayi1+sayi2));
	}
	else
	{
		jlab1.setText("Sonuc:"+(sayi1-sayi2));
	}

}

public static void main(String[] asds)
{
new ornek5();
}

}

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

class ornek5 implements ActionListener{

JLabel jlab1;

JTextField jtf1,jtf2;

ornek5(){

JFrame jfrm = new JFrame("İlk penceremiz");

jfrm.setSize(200,150);

jfrm.setLayout(new FlowLayout());

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jtf1= new JTextField(10);

jtf2= new JTextField(10);

jlab1 = new JLabel("");

JButton jbtn1 = new JButton("Topla");

JButton jbtn2 = new JButton("Çıkar");

jbtn1.addActionListener(this);

jbtn2.addActionListener(this);

jfrm.add(jtf1);

jfrm.add(jtf2);

jfrm.add(jlab1);

jfrm.add(jbtn1);

jfrm.add(jbtn2);

jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)

{

int sayi1,sayi2;

sayi1=Integer.parseInt(jtf1.getText());

sayi2=Integer.parseInt(jtf2.getText());

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

jlab1.setText("Sonuc:"+(sayi1+sayi2));

}

else

{

jlab1.setText("Sonuc:"+(sayi1-sayi2));

}

public static void main(String[] asds)

{

new ornek5();

}

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

class hesapmak implements ActionListener
{

int sayi1,sayi2,islem=0;
JTextField jtf;

hesapmak()
{
	JFrame jfrm = new JFrame("Hesap Makinası");
	jfrm.setLayout(new FlowLayout());
	jfrm.setSize(175,200);
	jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	jtf=new JTextField(10); 
	jfrm.add(jtf);

	jtf.setEnabled(false); // text alani pasiflesir

	for(int i=1;i<10;i++)
	{
		JButton jbtn = new JButton(i+"");
		jbtn.addActionListener(this);
		//jbtn.setActionCommand("sayi");
		jfrm.add(jbtn);
	}

	JButton jbtnarti = new JButton("+");
	JButton jbtneksi = new JButton("-");
	JButton jbtnesittir = new JButton("=");

	jbtnarti.addActionListener(this);
	jbtneksi.addActionListener(this);
	jbtnesittir.addActionListener(this);

	jfrm.add(jbtnarti);
	jfrm.add(jbtneksi);
	jfrm.add(jbtnesittir);

	jfrm.setVisible(true);
}

public void actionPerformed(ActionEvent ae)
{

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

sayi1=Integer.parseInt(jtf.getText());
jtf.setText("");
islem=1;
	
}else if(ae.getActionCommand().equals("-"))
{
sayi1=Integer.parseInt(jtf.getText());
jtf.setText("");
islem=2;

}else if(ae.getActionCommand().equals("="))
{


if(islem>0)
{
sayi2=Integer.parseInt(jtf.getText());

	if(islem==1)
	{
		sayi1+=sayi2;
	}
	else
	{
		sayi1-=sayi2;
	}
	jtf.setText(sayi1+"");
	sayi1=0;
	sayi2=0;
	islem=-1;

}

}else
{
// sayi

	if(islem<0)
	{
		jtf.setText("");
		islem=0;
	}
	jtf.setText(jtf.getText()+ae.getActionCommand());

}


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

}

100

101

102

103

104

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

class hesapmak implements ActionListener

{

int sayi1,sayi2,islem=0;

JTextField jtf;

hesapmak()

{

JFrame jfrm = new JFrame("Hesap Makinası");

jfrm.setLayout(new FlowLayout());

jfrm.setSize(175,200);

jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

jtf=new JTextField(10);

jfrm.add(jtf);

jtf.setEnabled(false); // text alani pasiflesir

for(int i=1;i<10;i++)

{

JButton jbtn = new JButton(i+"");

jbtn.addActionListener(this);

//jbtn.setActionCommand("sayi");

jfrm.add(jbtn);

}

JButton jbtnarti = new JButton("+");

JButton jbtneksi = new JButton("-");

JButton jbtnesittir = new JButton("=");

jbtnarti.addActionListener(this);

jbtneksi.addActionListener(this);

jbtnesittir.addActionListener(this);

jfrm.add(jbtnarti);

jfrm.add(jbtneksi);

jfrm.add(jbtnesittir);

jfrm.setVisible(true);

}

public void actionPerformed(ActionEvent ae)

{

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

{

sayi1=Integer.parseInt(jtf.getText());

jtf.setText("");

islem=1;

}else if(ae.getActionCommand().equals("-"))

{

sayi1=Integer.parseInt(jtf.getText());

jtf.setText("");

islem=2;

}else if(ae.getActionCommand().equals("="))

{

if(islem>0)

{

sayi2=Integer.parseInt(jtf.getText());

if(islem==1)

{

sayi1+=sayi2;

}

else

{

sayi1-=sayi2;

}

jtf.setText(sayi1+"");

sayi1=0;

sayi2=0;

islem=-1;

}

}else

{

// sayi

if(islem<0)

{

jtf.setText("");

islem=0;

}

jtf.setText(jtf.getText()+ae.getActionCommand());

}

public static void main(String[] asdasd)

{

new hesapmak();

}

Okumaya devam et

Etiket: JTextField

Java-2 2016 Hafta-8 Örnek-1

Java-2 – 2016 – Hafta – 4 – 1

Java-2 – YO2015 – Hafta – 6

Java-2 – YO2015 – Hafta – 5

Java-2 – YO2015 – Hafta – 4

Java-2 – YO2015 – Hafta – 3

Java-2(2015) 5. Hafta Swing Uygulamaları

Java-2(2015) 3. Hafta Swing Uygulamaları

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