java里边图形界面编程

更新时间：2025-01-23 14:51:00

修改成这样：

import java.awt.*;

import javax.swing.*;

public class test2 extends JFrame

{

public static void main(String[] args)

{

test2 a = new test2();

}

public test2()

{

JButton a1 = new JButton("东");

JButton a2 = new JButton("西");

JButton a3 = new JButton("南");

JButton a4 = new JButton("北");

JButton a5 = new JButton("中");

this.add(a1, BorderLayout.EAST);

this.add(a2, BorderLayout.WEST);

this.add(a3, BorderLayout.SOUTH);

this.add(a4, BorderLayout.NORTH);

this.add(a5, BorderLayout.CENTER);

this.setTitle("边界布局BorderLayout");

this.setSize(500, 400);

this.setLocation(800, 600);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setVisible(true);

}