Write a simple java application program using JFrane that extends MouseAdapter

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Mou extends JFrame {

    public Mou()
    {
        super("BUTTON TEST");
        addMouseListener( new MouseClickHandler());

        setSize(200,300);
        setVisible(true);
    }

    public static void main(String args[])
    {
        Mou bt = new Mou();
        bt.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
    }

private class MouseClickHandler extends MouseAdapter{

    public void mouseClicked(MouseEvent e)
    {

    JOptionPane.showMessageDialog(null,"Mouse clicked");
        repaint();
    }

    }
}