Java tutorial
import java.awt.Component; import java.awt.Container; import java.awt.GridLayout; import javax.swing.BorderFactory; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class XAxisAlignY { private static Container layoutComponents(String title, float alignment) { String labels[] = { "-", "-", "-" }; JPanel container = new JPanel(); container.setBorder(BorderFactory.createTitledBorder(title)); BoxLayout layout = new BoxLayout(container, BoxLayout.X_AXIS); container.setLayout(layout); for (int i = 0, n = labels.length; i < n; i++) { JButton button = new JButton(labels[i]); button.setAlignmentY(alignment); container.add(button); } return container; } public static void main(String args[]) { JFrame frame = new JFrame("Alignment Example"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Container panel1 = layoutComponents("Top", Component.TOP_ALIGNMENT); Container panel2 = layoutComponents("Center", Component.CENTER_ALIGNMENT); Container panel3 = layoutComponents("Bottom", Component.BOTTOM_ALIGNMENT); frame.setLayout(new GridLayout(1, 3)); frame.add(panel1); frame.add(panel2); frame.add(panel3); frame.setSize(400, 150); frame.setVisible(true); } }