windoweventdemo.java

来自「本java源程序包括了大量的学习程序（共27章）方便大家学习」· Java 代码 · 共 55 行

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class WindowEventDemo extends JFrame
{
	public WindowEventDemo()
	{
		super("窗口事件");
		setSize(400, 400);
		
		//设置窗口背景颜色
		getContentPane().setBackground(Color.GREEN);
		addWindowListener(new EventHandler());
		setVisible(true);
	}
   
    public static void main(String[] args)
    {
	    WindowEventDemo application = new WindowEventDemo();
    }
   
    class EventHandler extends WindowAdapter
    {
	    public void windowActivated(WindowEvent event)
	    {
	      //windowActivated激活窗口事件处理
		    System.out.println("激活窗口");
	    }
	   
	    public void windowDeactivated(WindowEvent event)
	    {
	    	//windowDeactivated非激活窗口事件处理
		    System.out.println("窗口处于不活动状态");
	    }
	   
	    public void windowClosing(WindowEvent event)
	    {
	    	//windowClosing窗口关闭事件处理
		    System.out.println("关闭窗口");
	    }
	   
	    public void windowIconified(WindowEvent event)
	    {
	    	//windowIconified窗口最小化事件处理
		    System.out.println("窗口最小化");
	    }
	   
	    public void windowDeiconified(WindowEvent event)
	    {
	    	//windowDeiconified窗口还原事件处理
		    System.out.println("窗口还原");
	    } 
    }
}