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import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main extends JFrame {
public Main() {
super("Demostrating BoxLayout");
final int SIZE = 3;
Container c = getContentPane();
c.setLayout(new BorderLayout(30, 30));
Box boxes[] = new Box[4];
boxes[0] = Box.createHorizontalBox();
boxes[1] = Box.createVerticalBox();
boxes[2] = Box.createHorizontalBox();
boxes[3] = Box.createVerticalBox();
for (int i = 0; i < SIZE; i++)
boxes[0].add(new JButton("boxes[0]: " + i));
for (int i = 0; i < SIZE; i++) {
boxes[1].add(Box.createVerticalStrut(25));
boxes[1].add(new JButton("boxes[1]: " + i));
}
for (int i = 0; i < SIZE; i++) {
boxes[2].add(Box.createHorizontalGlue());
boxes[2].add(new JButton("boxes[2]: " + i));
}
for (int i = 0; i < SIZE; i++) {
boxes[3].add(Box.createRigidArea(new Dimension(12, 8)));
boxes[3].add(new JButton("boxes[3]: " + i));
}
JPanel panel = new JPanel();
panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
for (int i = 0; i < SIZE; i++) {
panel.add(Box.createGlue());
panel.add(new JButton("panel: " + i));
}
c.add(boxes[0], BorderLayout.NORTH);
c.add(boxes[1], BorderLayout.EAST);
c.add(boxes[2], BorderLayout.SOUTH);
c.add(boxes[3], BorderLayout.WEST);
c.add(panel, BorderLayout.CENTER);
setSize(350, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public static void main(String args[]) {
Main app = new Main();
}
}
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