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

/** This class is used to demo the use of a Box. The comment
    on the constructor says how the frame is laid out.
  */
public class BoxDemo extends JFrame {

 /** Constructor: an invisible frame with title t, labels in the
     east, a west, a blank label in the south, and a horizontal
     Box with three buttons in the center. Change the Box
     to a vertical box, as an experiment.
   */
 public BoxDemo(String t) {
  super(t);
  
  Box b= new Box(BoxLayout.Y_AXIS);        
  b.add(new JButton("first"));
  b.add(new JButton("second"));
  b.add(new JButton("third"));
   
  Container cp= getContentPane();
  cp.add(new JLabel("WEST Label"), BorderLayout.WEST);
  cp.add(new JLabel("EAST Label"), BorderLayout.EAST);
  cp.add(new JLabel(" "), BorderLayout.SOUTH);
  
  cp.add(b, BorderLayout.CENTER);
   
  //pack();
 }
 
 public static void main(String[] args) {
  BoxDemo pd= new BoxDemo("demo JPanel");
  pd.setVisible(true);
 }

}