清华大学：JAVA教学课件：7-9

import java.awt.*;
import javax.swing.*;
public class BoxLayoutDemo {
private JFrame frame;
private JPanel pv,ph;
public static void main(String args[]) {
BoxLayoutDemo that = new BoxLayoutDemo();
that.go();
}
void go() {
frame = new JFrame("Box Layout example");
Container contentPane = frame.getContentPane();
pv = new JPanel();
//将pv的布局管理器设置为垂直方向的BoxLayout
pv.setLayout(new BoxLayout(pv,BoxLayout.Y_AXIS));
//为pv添加标签label
pv.add(new JLabel(" Monday"));
pv.add(new JLabel(" Tuesday"));
pv.add(new JLabel(" Wednesday"));
pv.add(new JLabel(" Thursday"));
pv.add(new JLabel(" Friday"));
pv.add(new JLabel(" Saturday"));
pv.add(new JLabel(" Sunday"));
//将pv添加到内容窗格的中部
contentPane.add(pv,BorderLayout.CENTER);
ph = new JPanel();
//将ph的布局管理器设置为水平方向的BoxLayout
ph.setLayout(new BoxLayout(ph,BoxLayout.X_AXIS));
//为ph添加按钮
ph.add(new JButton("Yes"));
ph.add(new JButton("No"));
ph.add(new JButton("Cancel"));

//将ph添加到内容窗格的南部
contentPane.add(ph,BorderLayout.SOUTH);
frame.pack();
frame.setVisible(true);
}
}