鼠标监听的问题~

Question

package draw;import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.net.URL;public class Draw extends Applet { 
       
       Image image0 = null;
       Image image1 = null;
       Image image2 = null;   public void init() { 
        
       URL codebase=getCodeBase();
       image0=getImage(codebase,"dianlanright.gif"); 
       image1=getImage(codebase,"dianlanleft.gif");
       image2=getImage(codebase,"danlanchuanganqiup.gif");
       setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));        
       
   } 
   
   public void draw(){
           Panel pn1=new Panel();
      pn1.setBackground(Color.blue);
      Canvas cvs=new Canvas();
      add(pn1);
      pn1.add(cvs);
      
        
             
   }
   public void paint(Graphics g){
     
      g.drawImage(image0,66,55,this); 
      g.drawImage(image1,126,55,this); 
      g.drawImage(image2,166,55,this); 
      g.drawString("happy",36,22);
   }
} 我想在g.drawImage(image0,66,55,this); 
      g.drawImage(image1,126,55,this); 
      g.drawImage(image2,166,55,this); 
画出的图上实现鼠标监听,怎么可以实现阿