Panel面板，并解决关闭窗口

Panel面板，并解决关闭窗口

package com.tai;

import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class TestPanel {
    public static void main(String[] args) {
        Frame frame = new Frame();
        //布局的概念
        Panel panel = new Panel();


        //设置布局
        frame.setLayout(null);

        //坐标
        frame.setBounds(300,300,500,500);
        frame.setBackground(Color.green);

        //panel设置坐标,相对于frame
        panel.setBounds(50,50,400,400);
        panel.setBackground(Color.red);

        //frame.add(panel)
        frame.add(panel);
        frame.setVisible(true);
        //panel.setVisible(true);

        //监听事件，监听窗口关闭事件
        frame.addWindowListener(new WindowAdapter() {
            //窗口点击关闭的时候需要做的事情
            @Override
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });

    }
}