布局管理器练习

Posted 2021-06-06 伤逝l

 

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

public class Test01 extends Frame {
    public static void main(String[] args) {
        new Test01();
    }

    public Test01() {
        this.setLayout(new GridLayout(2,1));

        //窗口参数
        this.setSize(300,400);
        this.setLocation(400,300);
        this.setBackground(Color.black);
        this.setVisible(true);

        //创建面板
        Panel panel1 = new Panel(new BorderLayout());
        Panel panel2 = new Panel(new GridLayout(2,1));
        Panel panel3 = new Panel(new BorderLayout());
        Panel panel4 = new Panel(new GridLayout(2,2));

        //上面添加按钮
        panel1.add(new Button("Button"),BorderLayout.EAST);
        panel1.add(new Button("Button"),BorderLayout.WEST);
        panel2.add(new Button("Button"));
        panel2.add(new Button("Button"));
        panel1.add(panel2,BorderLayout.CENTER);

        //下面添加按钮
        panel3.add(new Button("Button"),BorderLayout.EAST);
        panel3.add(new Button("Button"),BorderLayout.WEST);
        for (int i = 0; i < 4; i++) {
            panel4.add(new Button("Button"));
        }

        //添加面板
        panel3.add(panel4,BorderLayout.CENTER);
        this.add(panel1);
        this.add(panel3);

        //窗口关闭
        this.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });

    }
}

 

运行截图