GUI 之边界布局

编写代码 TestBorderLayout测试类

package com.xiang.lesson01;

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

//东南西北中
//边界布局
public class TestBorderLayout {
    public static void main(String[] args) {
        Frame frame = new Frame("TestBorderLayout");

        Button east = new Button("East");
        Button west = new Button("West");
        Button south = new Button("South");
        Button north = new Button("North");
        Button center = new Button("Center");

        frame.add(center,BorderLayout.CENTER);
        frame.add(north,BorderLayout.NORTH);
        frame.add(south,BorderLayout.SOUTH);
        frame.add(west,BorderLayout.WEST);
        frame.add(east,BorderLayout.EAST);

       frame.setBounds(400,400,400,400);
       frame.setVisible(true);
       frame.addWindowListener(new WindowAdapter() {
           @Override
           public void windowClosing(WindowEvent e) {
               System.exit(0);
           }
       });
    }
}

运行结果