Panel面板讲解

package com.sheng.lesson01;

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

//PANEL
public class TestPanel {
public static void main(String[] args) {
Frame frame = new Frame();
Panel panel = new Panel();
//设置布局
frame.setLayout(null);

//坐标
frame.setBounds(300,300,500,500);
frame.setBackground(new Color(123,23,23));

//panel设置坐标,相对于frame
panel.setBounds(50,50,400,400);
panel.setBackground(new Color(40,161,35));

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

frame.addWindowListener(new WindowAdapter() {
//窗口点击关闭的时候要做的事情
@Override
public void windowClosing(WindowEvent e) {
super.windowClosing(e);
System.exit(0);
}
});


}
}
//完事后可以点击窗口关闭
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