14)Write a Java program which will create a frame if we try to close it, it should change it’s color and it remains visible on the screen(Use swing).
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Slip14 extends JFrame
{
JPanel p = new JPanel();
Slip14()
{
setVisible(true);
setSize(400,400);
setTitle("Swing Background");
add(p);
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
p.setBackground(Color.RED);
JOptionPane.showMessageDialog(null,"Close window","Login",JOptionPane.INFORMATION_MESSAGE);
}
});
}
public static void main(String args[])
{
new Slip14();
}
}
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