import java.awt.event.*;
import java.awt.Graphics;
import java.lang.Math;

public class Circle extends java.applet.Applet implements MouseListener, MouseMotionListener {

    int mx, my;

    public void init() {
	mx=-1;
	setSize(500, 500);
	addMouseListener(this);
	addMouseMotionListener(this);
    }

    public void destroy() {
        removeMouseListener(this);
        removeMouseMotionListener(this);
    }

    public void paint(Graphics g) {
	if (mx != -1){
		int d=(int)(Math.random()*1000) % (getSize().width - (getSize().width/2));
		g.drawOval(mx-(int)(d/2),my-(int)(d/2),d,d);
	}
    }

    /*
     * Mouse methods
     */
    public void mouseDragged(MouseEvent e) {
    }

    public void mouseMoved(MouseEvent e) {
/*        e.consume();
          repaint();*/
    }

    public void mousePressed(MouseEvent e) {
        int x = e.getX();
	mx=x;
        int y = e.getY();
        my=y;
        e.consume();
        requestFocus();
        repaint();
    }

    public void mouseReleased(MouseEvent e) {
    }

    public void mouseEntered(MouseEvent e) {
//        repaint();
    }

    public void mouseExited(MouseEvent e) {
//        repaint();
    }

    public void mouseClicked(MouseEvent e) {
    }

}