import java.awt.GridLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class MainGridLayout { public static void main(String[] args) { JFrame vindu = new JFrame("GridLayout"); vindu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel panel = new JPanel(); panel.setLayout(new GridLayout(4, 4, 5, 5)); for (int i = 0; i < 16; i++) { panel.add(new JButton(String.valueOf(i))); } vindu.add(panel); vindu.setSize(500, 500); vindu.setVisible(true); } }