Java 事件和事件监听

 1 public class MouseAdapterTest extends Frame
 2 {
 3     public static void main(String[] args)
 4     {
 5         Frame f = new Frame();
 6         f.setBounds(500, 500, 200, 200);
 7         f.addMouseListener(new asd());
 8         f.setVisible(true);
 9     }
10 }
11 class asd extends MouseAdapter
12 {
13     @Override
14     public void mouseClicked(MouseEvent e) {
15         System.out.println("鼠标点击了");
16     }
17 }