Java tutorial
import javax.swing.Box; import javax.swing.BoxLayout; import javax.swing.JButton; public class Main { public static void main(String[] argv) throws Exception { JButton component1 = new JButton(); JButton component2 = new JButton(); // Create vertical box container Box box = new Box(BoxLayout.Y_AXIS); // create a vertical box container box = Box.createVerticalBox(); // Add components box.add(component1); box.add(component2); } }