JPanel in JFrame

please help:- i have this java applet to imbed in html;
Inheritance from Java base class JPanel;
• A circle must be drawn at the point where you click;
• The circle must be a random colour and size. The size of the circle is bounded between 10 and60 pixels in diameter;
• The radius and the coordinates of the circle must be displayed at the top of the panel, centered;
• Use the MouseListener event to detect mouse where the mouse is initially clicked.
• Include a new button to move the mouse randomly across the screen to simulate a tennis match;
• If the same button is pressed again, the motion must be stopped;
• Extra marks will be given if the size of the circle can be adjusted.
*It should run on an internet browser as an applet (e.g firefox)~o)

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db

What I've done so far:_

import javax.swing.JApplet;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class GUIApplet extends JApplet
{
public void init()
{
FrameGUI gui = new FrameGUI();

this.add(gui);
this.setSize(500, 500);
this.setVisible(true);


}

public void paint(Graphics g)
{
super.paint(g);
}
}