MouseEvent的有关问题

我想在Frame中点击鼠标就显示一个圆点。。。不知道哪里错了  望高手指点

import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class ClickPoint {
 public static void main(String[] args) {
  new MyFrame("Point");
 }
}

class MyFrame extends Frame {
 ArrayList points = null;
 MyFrame(String name) {
  super(name);
  setBounds(200,200,500,500);
  setLayout(null);
  setVisible(true);
  this.addMouseListener(new Mon());
 }
 
 public void paint(Graphics g) {
  Iterator i = points.iterator();
  Color c = g.getColor();
  
  while(i.hasNext()) {
   Point p = (Point)i.next();
   g.setColor(Color.yellow);
   g.fillOval(p.x,p.y,5,5);
  }
  
  g.setColor(c);
 }
 
 public void addPoint(Point p) {
  points.add(p);
 }
 
 
}
class Mon extends MouseAdapter {
  public void mousePressed(MouseEvent e) {
   MyFrame mf = (MyFrame)e.getSource();
   Point p = new Point(e.getX(),e.getY());
   mf.addPoint(p);
   mf.repaint();
  }
}

给你改了下,当然,还不完善,不过方法已经有了,得自己多看下了!import java.awt.*;import javax.swing.*;import java.awt.event.*;import javax.swing.event.*;public class TankWar }class Pan extends JPanel public void paint(Graphics g) }class Windos extends JFrame });}}class Monitor implements MouseListenerpublic void mouseExited(MouseEvent e) public void mousePressed(MouseEvent e) public void mouseReleased(MouseEvent e) public void mouseClicked(MouseEvent e) }