javaGUI–布局练习

效果:

package cn.usts.edu.lesson01;

import java.awt.*;

public class Ex01 {

    public static void main(String[] args) {
        Frame frame = new Frame("练习");
        // 大小
        frame.setSize(900,600);
        frame.setBackground(Color.orange);
        // 位置
        frame.setLocation(500,500);
        // 可见
        frame.setVisible(true);
        // 2*1
        frame.setLayout(new GridLayout(2,1));

        // ------------------------------------上半部分----------------------------------
        Panel pup =new Panel(new BorderLayout());
        Panel pup_in =new Panel(new GridLayout(2,1));

        pup.add(new Button("up-west"),BorderLayout.WEST);
        pup.add(new Button("up-east"),BorderLayout.EAST);

        pup_in.add(new Button("up-center-01"));
        pup_in.add(new Button("up-center-02"));

        pup.add(pup_in,BorderLayout.CENTER);

        frame.add(pup);

        // ------------------------------------下半部分----------------------------------
        Panel pdown = new Panel();
        pdown.setLayout(new BorderLayout());
        pdown.add(new Button("down-left-01"),BorderLayout.WEST);
        pdown.add(new Button("down-left-02"),BorderLayout.EAST);

        Panel pdwon_in = new Panel();
        pdwon_in.setLayout(new GridLayout(2,2));
        pdwon_in.add(new Button("down-center-01"));
        pdwon_in.add(new Button("down-center-02"));
        pdwon_in.add(new Button("down-center-03"));
        pdwon_in.add(new Button("down-center-04"));

        pdown.add(pdwon_in);

        frame.add(pdown);
    }
}