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package test_12;

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

class MyWindowListener implements WindowListener
{
public void windowClosing(WindowEvent e)
{
System.out.println("我退出了！");
e.getWindow().setVisible(false); //变为不显示
((Window)e.getComponent()).dispose(); //释放窗口资源
System.exit(0); //结束虚拟系统运行
}
public void windowActivated(WindowEvent e){}
public void windowClosed(WindowEvent e){}
public void windowDeactivated(WindowEvent e){}
public void windowDeiconified(WindowEvent e){}
public void windowIconified(WindowEvent e){}
public void windowOpened(WindowEvent e){}
};

class TestFrame {
public static void main(String arg[])
{
Frame f = new Frame("A Test Window");
f.setSize(700,500);
f.setVisible(true);
f.addWindowListener(new MyWindowListener());
}
}