Image resized on JPanel

//thanks to
//http://stackoverflow.com/questions/22162398/how-to-set-a-background-picture-in-jpanel
//and a little edition


//PicPanel.java


import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JPanel;

/**
 *
 * @author user
 */
public class PicPanel extends JPanel
{
    private BufferedImage image;
    private int jw, jh;
    public PicPanel(String fname, int image_width, int image_height,
            int jpanel_width, int jpanel_height){

        setBounds(0,0,image_width,image_height);
        jw = jpanel_width;
        jh = jpanel_height;

        try
        {
            image = ImageIO.read(new File(fname));
        }
        catch (IOException ioe)
        {
            System.out.println(ioe.toString());
            System.out.println("Could not read in the pic");
        }
    }
    @Override
    public void paintComponent(Graphics g)
    {
        super.paintComponent(g);
        g.drawImage(image,0,0,jw,jh,this);
    }
}





//anywhere on code

PicPanel mainPanel = new PicPanel("disk2.png", 256, 256, 180, 180); //image , image width, image height, jpanel width, jpanel height
add(mainPanel);