Write a simple program for mouselistener

import java.applet.*;

import java.awt.*;

import java.awt.event.*;       

public class Mous extends Applet implements MouseListener

{

public void init()

{

addMouseListener(this);        

}

public void mouseClicked(MouseEvent e)

{

            setBackground(Color.green);

           

}

public void mouseEntered(MouseEvent e)

{

            setBackground(Color.blue);

}

public void mouseExited(MouseEvent e)

{

            setBackground(Color.yellow);

}

public void mouseReleased(MouseEvent e)

{

            setBackground(Color.pink);

}

}

Output :