Java tutorial
import javax.swing.JFrame; import javax.swing.JPanel; public class Main extends JFrame { public Main() { super("Test"); setSize(200, 200); JPanel panel = new JPanel(); setContentPane(panel); JButton button1 = new JButton("Button 1"); JButton button2 = new JButton("Button 2"); JButton button3 = new JButton("Button 3"); button1.setBounds(10, 10, 100, 40); button2.setBounds(5, 5, 100, 30); button3.setBounds(15, 15, 150, 40); panel.setLayout(null); panel.add(button1); panel.add(button2); panel.add(button3); panel.setComponentZOrder(button1, 1); panel.setComponentZOrder(button2, 0); panel.setComponentZOrder(button3, 2); setDefaultCloseOperation(EXIT_ON_CLOSE); setVisible(true); } public static void main(String[] args) { new Main(); } }