IDEA中使用监听器

一、被监听对象
二、监听器
三、将时间源和监听器绑定

package listener.uilistener;

import javax.swing.*;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;

/**
 * GUI的小窗口演示监听器
 */
public class MyFrame extends JFrame {
    public static void main(String[] args) {
        //设置小窗口对象；
        MyFrame myFrame=new MyFrame();
        //设置窗口的宽高；
        myFrame.setBounds(0,0,200,180);
        //设置窗口显示；
        myFrame.setVisible(true);
        //在事件源上绑定监听器；
        myFrame.addWindowListener(new MyWindowListener());
    }
    /**
     * 监听器对象
     */
    static class MyWindowListener implements WindowListener{

        @Override
        public void windowOpened(WindowEvent e) {

        }

        @Override
        public void windowClosing(WindowEvent e) {
            System.out.println("窗口关闭");
            System.exit(0);//停止运行；

        }

        @Override
        public void windowClosed(WindowEvent e) {

        }

        @Override
        public void windowIconified(WindowEvent e) {

        }

        @Override
        public void windowDeiconified(WindowEvent e) {

        }

        @Override
        public void windowActivated(WindowEvent e) {

        }

        @Override
        public void windowDeactivated(WindowEvent e) {

        }
    }
}