JComponents に背景画像を追加して可視性の問題を解決するにはどうすればよいですか?

class CustomPanel extends JPanel {
    private BufferedImage image;

    public CustomPanel(BufferedImage image) {
        this.image = image;
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        g.drawImage(image, 0, 0, this);
    }
}

BufferedImage myPicture = ImageIO.read(new File("c:\bgd.png"));

CustomPanel picPanel = new CustomPanel(myPicture);
window.add(picPanel, c);

JLabel picLabel = new JLabel(new ImageIcon(myPicture));
mainp.add(picLabel, c);

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.*;

public class BackgroundImageExample {

    public static void main(String[] args) {
        try {
            // Create the main window
            JFrame window = new JFrame("Window with Background Image");
            window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            window.setSize(300, 250);
            window.setResizable(false);

            // Create the background image and CustomPanel
            BufferedImage image = ImageIO.read(new File("path/to/background.png"));
            CustomPanel picPanel = new CustomPanel(image);
            picPanel.setOpaque(true);

            // Add the CustomPanel to the main window
            window.add(picPanel);

            // Show the window
            window.setVisible(true);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.*;

public class BackgroundImageExample {

    public static void main(String[] args) {
        try {
            // Create the main window
            JFrame window = new JFrame("Window with Background Image");
            window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            window.setSize(300, 250);
            window.setResizable(false);

            // Create the background image and JLabel
            BufferedImage image = ImageIO.read(new File("path/to/background.png"));
            JLabel picLabel = new JLabel(new ImageIcon(image));
            picLabel.setOpaque(true);

            // Add the JLabel to the main window
            window.add(picLabel);

            // Show the window
            window.setVisible(true);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}