How to set a background picture in JPanel

Question

hello i am using JPanel as my container of my frame then i really want to used a background picture in my Panel i really need help this is my code so far . this is the updat

Answer 1

import java.awt.*;

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

import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;


public class imagebut extends JFrame
{

public static void main(String args [])
{
imagebut w = new imagebut();
w.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
w.setSize(300,300);
w.setVisible(true);

}
 public imagebut()
{   

setLayout(null); // :-)
PicPanel mainPanel = new PicPanel("picturename.jpg");
mainPanel.setBounds(0,0,500,500);
add(mainPanel);


  }

 class PicPanel extends JPanel{

private BufferedImage image;
private int w,h;
public PicPanel(String fname){

    //reads the image
    try {
        image = ImageIO.read(getClass().getResource(fname));
        w = image.getWidth();
        h = image.getHeight();

    } catch (IOException ioe) {
        System.out.println("Could not read in the pic");
        //System.exit(0);
    }

}

public Dimension getPreferredSize() {
    return new Dimension(w,h);
}
//this will draw the image
public void paintComponent(Graphics g){
    super.paintComponent(g);
    g.drawImage(image,0,0,this);
}
}

 }