Java JLayeredPane

// Java Program to demonstrate a simple  JLayeredPane
import javax.swing.*;
import java.awt.*;

public class LayeredPaneExample {
    public static void main(String[] args) {
        // Create a JFrame (the main window for the application).
        JFrame frame = new JFrame("JLayeredPane Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 400);

        // Create a JLayeredPane to manage the layering of components.
        JLayeredPane layeredPane = new JLayeredPane();
        frame.add(layeredPane); // Add the JLayeredPane to the JFrame.

        // Create three colored panels to add to the layered pane.
        JPanel panel1 = createColoredPanel(Color.RED, 100, 100, 200, 200);
        JPanel panel2 = createColoredPanel(Color.GREEN, 150, 150, 200, 200);
        JPanel panel3 = createColoredPanel(Color.BLUE, 200, 200, 200, 200);

        // Add the panels to the layered pane with different layer values.
        // The layers determine the stacking order of the panels.
        layeredPane.add(panel1, JLayeredPane.DEFAULT_LAYER);
        layeredPane.add(panel2, JLayeredPane.PALETTE_LAYER);
        layeredPane.add(panel3, JLayeredPane.MODAL_LAYER);

        frame.setVisible(true); // Make the JFrame visible.
    }

    private static JPanel createColoredPanel(Color color, int x, int y, int width, int height) {
        // Create a colored JPanel with specified color and position.
        JPanel panel = new JPanel();
        panel.setBackground(color);
        panel.setBounds(x, y, width, height);
        return panel;
    }
}

// Java Swing Program to Implementing
// getIndexOf(Component com), getLayer(Component com)
// and getPosition(Component com) methods in
// JLayeredPane to get a specified layer information
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;

// Driver Class
public class LayeredPaneMethodsExample {
    // main function
    public static void main(String[] args)
    {
        JFrame frame = new JFrame("JLayeredPane Example");
        frame.setDefaultCloseOperation(
            JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 400);
      
        // Creating an object of JLayeredPane
        JLayeredPane layeredPane = new JLayeredPane();
        
          frame.add(layeredPane); // Adding Frame to it
        
          // Create three colored panels
        JPanel panel1 = createColoredPanel(Color.RED, 100,
                                           100, 200, 200);
        JPanel panel2 = createColoredPanel(Color.GREEN, 150,
                                           150, 200, 200);
        JPanel panel3 = createColoredPanel(Color.BLUE, 200,
                                           200, 200, 200);
        
          // Add the panels to the layered pane with different
        // layer values
        layeredPane.add(panel1, JLayeredPane.DEFAULT_LAYER);
        layeredPane.add(panel2, JLayeredPane.PALETTE_LAYER);
        layeredPane.add(panel3, JLayeredPane.MODAL_LAYER);
        
          // Creating a JButton by clicking which we get layer
        // information
        JButton getInfoButton = new JButton(
            "Click here to get Layer Information");
        
          getInfoButton.setBounds(10, 10, 100, 30);
        frame.add(getInfoButton);
        
          getInfoButton.addActionListener(
            new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e)
                {
                    // Get information about the second
                    // panel (panel2)
                    int index = layeredPane.getIndexOf(panel2);
                    int layer = layeredPane.getLayer(panel2);
                    int position = layeredPane.getPosition(panel2);

                    JOptionPane.showMessageDialog(null, "Index: " + index 
                            + "\nLayer: " + layer + "\nPosition: " + position);
                }
            });

        frame.setVisible(true);
    }

    private static JPanel createColoredPanel(Color color,int x, int y,int width,int height)
    {
        JPanel panel = new JPanel();
        panel.setBackground(color);
        panel.setBounds(x, y, width, height);
        return panel;
    }
}