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Gui11.java
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45 lines (41 loc) · 1.16 KB
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//GUI.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class GUI extends WindowAdapter{
JFrame jf;
public GUI(){
jf=new JFrame("Window 1");
jf.setLayout(new GridLayout(2,2,50,50));
JButton b1=new JButton("B1");
JButton b2=new JButton("B2");
JButton b3=new JButton("B3");
JButton b4=new JButton("B4");
jf.add(b1);
jf.add(b2);
jf.add(b3);
jf.add(b4);
jf.addWindowListener(this);
jf.setSize(600,600);
jf.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
jf.setVisible(true);
}
public void windowClosing(WindowEvent we){
int a=JOptionPane.showConfirmDialog(jf,"Are u Sure?");
if(a==JOptionPane.YES_OPTION){
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
else if(a==JOptionPane.NO_OPTION){
jf.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
}
else if(a==JOptionPane.CANCEL_OPTION){
jf.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
}
}
}
//Main.java
public class Main {
public static void main(String[] args) {
new GUI();
}
}