Java tutorial
import java.awt.GridLayout; import javax.swing.JButton; import javax.swing.JPanel; public class Main { public static void main(String[] argv) throws Exception { JButton component1 = new JButton(); JButton component2 = new JButton(); int rows = 2; int cols = 2; JPanel panel = new JPanel(new GridLayout(rows, cols)); panel.add(component1); panel.add(component2); } }