Java tutorial
/* Java Swing, 2nd Edition By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole ISBN: 0-596-00408-7 Publisher: O'Reilly */ // HBoxWithGlue.java //A quick test of the box layout manager using the Box utility class. // import java.awt.Button; import javax.swing.Box; import javax.swing.JFrame; public class HBoxWithGlue extends JFrame { public HBoxWithGlue() { super("Box & Glue Frame"); setSize(350, 100); Box box = Box.createHorizontalBox(); setContentPane(box); box.add(Box.createHorizontalGlue()); for (int i = 0; i < 3; i++) { Button b = new Button("B" + i); box.add(b); } box.add(Box.createHorizontalGlue()); setDefaultCloseOperation(EXIT_ON_CLOSE); setVisible(true); } public static void main(String args[]) { HBoxWithGlue bt = new HBoxWithGlue(); } }