import java.applet.*;
import java.awt.event.*;
public class InnerClassDemo extends Applet{
public void init(){
addMouseListener(new MyMouseAdapter());
}
class MyMouseAdapter extends MouseAdapter(){
public void mousePressed(MouseEvent me)
{
showStatus("Mouse is pressed");
}
}
}
去掉括号即可,继承的是鼠标的监听接口,没有括号
老兄!!!!!!!!!!