testanonymous.java

来自「Java与面向对象程序设计实验教学讲义.复数类的实现,复数类的复杂运算,身份证号」· Java 代码 · 共 40 行

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

public class TestAnonymous implements ActionListener{
	Frame f;
	TextArea tf;
	Button bt;
	int number=1;
   
	public TestAnonymous(){
		Label label=new Label("click and Drag the mouse");
		f=new Frame("Test Inner class");
		tf=new TextArea();
    	bt = new Button("退出");
	    
	  	tf.addMouseMotionListener(new MouseMotionAdapter(){
	  		 public void mouseDragged(MouseEvent e){ 
				String s = number+++" "+"The mouse Dragged: x= "+
							e.getX()+" y="+e.getY()+"\n";
				tf.append(s);
			 }
		 });   
	    bt.addActionListener(this);
	    
	    f.add(label,BorderLayout.NORTH);
	    f.add(tf,BorderLayout.CENTER);
	    f.add(bt,BorderLayout.SOUTH);		
		f.setSize(300,200);
		f.setVisible(true);
	}

    public void actionPerformed(ActionEvent e){
		System.exit(0);
	}

	public static void main(String args[]){
		TestAnonymous two = new TestAnonymous( );
	}
}