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36 lines (32 loc) · 880 Bytes
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Gui5.java
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36 lines (32 loc) · 880 Bytes
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//GUI.java
import javax.swing.*;
import java.awt.event.*;
public class GUI extends WindowAdapter{
JFrame jf;
GUI(){
jf=new JFrame("My Frame");
jf.addWindowListener(this);
jf.setSize(300,300);
jf.setLayout(null);
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) {
GUI gui=new GUI();
}
}