Hi Friend,

Try the following code:

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

class ButtonEvent extends JFrame {

JButton exit_button = new JButton ("Exit Button");

ButtonEvent () {
exit_button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt) {
int i = JOptionPane.showConfirmDialog(null,"Do you want to exit from JFrame?\n" + "Click any button for further processing.");
switch(i) {
case JOptionPane.YES_OPTION:
System.exit(0);
break;
case JOptionPane.NO_OPTION:
break;
case JOptionPane.CANCEL_OPTION:
break;
}
}
});
add(exit_button);
setVisible(true);
setSize(100, 50);
setTitle("Window Button");
}
public static void main (String [] args) {
ButtonEvent obj = new ButtonEvent();
}
}

Thanks