testframe.java

来自「我在学习JAVA的讲义」· Java 代码 · 共 31 行

import java.awt.*;
import java.awt.event.*;
public class TestFrame extends Frame{
	private Label label;
	private Label label2;
	public TestFrame(){
		super("Frame");
		label = new Label("我的第一个Frame程序");
		label2 = new Label("abcd");
		this.add(label,"Center");

		//this.addWindowListener(new WindowListener(){
		this.addWindowListener(new WindowAdapter(){
			public void windowClosing (WindowEvent e){
				System.exit(0);
			}
		});
		label.addMouseListener(new MouseAdapter(){
			public void mouseClicked(MouseEvent e){
				label.setText("第一个标签被单击");
				System.out.println("第一个标签被单击");
			}
		});
		this.setSize(400,300);
		this.setVisible(true);
			
	}
	public static void main(String[] args){
		TestFrame testFrame = new TestFrame();
	}
}