求救！java2参考大全里的了一个例子，我看了100次程序没错，就是达不到遇期的效果！
程序是这样的：
import   java.awt.*;
import   java.awt.event.*;
import   java.applet.*;
public   class   ResizeMe   extends   Applet{
        final   int   inc=25;
        int   max=500;
        int   min=200;
        Dimension   d;
public   ResizeMe()
{
addMouseListener(new   MouseAdapter(){
public   void   mouseReleased(MouseEvent   e){
  int   w=(d.width+inc)> max?min:(d.width+inc);
  int   h=(d.height+inc)> max?min:(d.height+inc);
}
});
}
public   void   paint(Graphics   g)
{
        d=getSize();
  g.drawLine(0,0,d.width-1,d.height-1);
  g.drawLine(0,d.height-1,d.width-1,0);
  g.drawLine(0,0,d.width-1,d.height-1);
 
}
}
程序是书上的，我照住打，程序运行没出错，只是不能监听到mouseReleased这个事件！我在哪里错了？高手指点！

------解决方案--------------------
你在mouseReleased里面就定义和改变了２个整数，视觉上是看不到是否监听到了该事件，
你在mouseReleased事件里加２行再看看:

addMouseListener(new MouseAdapter(){
public void mouseReleased(MouseEvent e){
int w=(d.width+inc)> max?min:(d.width+inc);
int h=(d.height+inc)> max?min:(d.height+inc);
getGraphics().drawString(Integer.toString(w), 5, 15);
getGraphics().drawString(Integer.toString(h), 5, 25);
}
});