Java by API/javax.swing/OverlayLayout

new OverlayLayout(Container target)

   <source lang="java">

import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.LayoutManager; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.OverlayLayout; public class Main {

 public static void main(String args[]) {
   JFrame frame = new JFrame("Overlay Example");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JPanel panel = new JPanel() {
     public boolean isOptimizedDrawingEnabled() {
       return false;
     }
   };
   LayoutManager overlay = new OverlayLayout(panel);
   panel.setLayout(overlay);
   JButton button = new JButton("Small");
   button.setMaximumSize(new Dimension(25, 25));
   button.setBackground(Color.white);
   panel.add(button);
   
   button = new JButton("Medium");
   button.setMaximumSize(new Dimension(50, 50));
   button.setBackground(Color.gray);
   panel.add(button);
   
   button = new JButton("Large");
   button.setMaximumSize(new Dimension(100, 100));
   button.setBackground(Color.black);
   panel.add(button);    
   frame.add(panel, BorderLayout.CENTER);
   frame.setSize(400, 300);
   frame.setVisible(true);
 }

}

 </source>