Java-2 2016 Hafta-5 Örnek-3

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();
}

}