程序8_11.java

import java.awt.*;
import javax.swing.*;

public class 程序8_11 {
    private JFrame frame;
    private Box b1, b2, b3, b4;
    public static void main(String[] args) {
        程序8_11 that = new 程序8_11();
        that.go();
    }    
    void go() {
        frame = new JFrame("Glue and Strut example");    
        Container contentPane = frame.getContentPane();
        contentPane.setLayout(new GridLayout(4,1));
        b1 = Box.createHorizontalBox();
        b1.add(new JLabel("Box 1 :  "));
        b1.add(new JButton("Yes"));
        b1.add(new JButton("No"));
        b1.add(new JButton("Cancel"));

        b2 = Box.createHorizontalBox();
        b2.add(new JLabel("Box 2 :  "));
        b2.add(new JButton("Yes"));
        b2.add(new JButton("No"));
        b2.add(Box.createHorizontalGlue());
        b2.add(new JButton("Cancel"));

        b3 = Box.createHorizontalBox();
        b3.add(new JLabel("Box 3 :  "));
        b3.add(new JButton("Yes"));
        b3.add(new JButton("No"));
        b3.add(Box.createHorizontalStrut(20));
        b3.add(new JButton("Cancel"));

        b4 = Box.createHorizontalBox();
        b4.add(new JLabel("Box 4 :  "));
        b4.add(new JButton("Yes"));
        b4.add(new JButton("No"));
        b4.add(Box.createRigidArea(new Dimension(50,90)));
        b4.add(new JButton("Cancel"));

        contentPane.add(b1);
        contentPane.add(b2);
        contentPane.add(b3);
        contentPane.add(b4);
        frame.setSize(300,200);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}