java语言GUI编程之Anoymous匿名类

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

public class TestAnoymous { Frame f = new Frame("测试匿名类"); TextField tf = new TextField(30);  public TestAnoymous() {  f.add(new Label("请按住鼠标并拖动"), BorderLayout.NORTH);  f.add(tf, BorderLayout.SOUTH);  f.setBounds(200, 200, 300, 500);  f.setResizable(true);  f.addMouseMotionListener(new MouseMotionListener() {   public void mouseDragged(MouseEvent e) {    tf.setText("您把鼠标拖动到了位置" + "(" + e.getX() + ", " + e.getY() + ")");   }      public void mouseMoved(MouseEvent e) {    tf.setText("鼠标移动到了位置" + "(" + e.getX() + ", " + e.getY() + ")");   }  }); // f.pack();  f.setVisible(true);   }  public static void main(String[] args) {  new TestAnoymous(); }}