import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class ZOrder extends JPanel {
public static void main(String[] args) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setContentPane(new ZOrder());
f.setSize(400, 300);
f.setVisible(true);
}
public ZOrder() {
setLayout(null);
JButton first = new JButton("This button is added first");
first.setBounds(20, 50, 200, 30);
add(first);
JButton second = new JButton("This button is added second");
second.setBounds(120, 65, 200, 30);
add(second);
}
}