No background image in JFrame

Question

I don't know what to do. I've read in the forum but nothing works!
I have a JFrame with JButtons (absolute positioning) and want an image as a background.
When you click a button, a new JFrame is opened.
public class MyProg extends JFrame {
public MyProg() {
setBounds(25,25,700,500);
Container contentPane.....
contentPane.setLayout(null);
JButton 1Button = new JButton(aString);
1Button.setActionCommand(aString);
1Button.setBounds(30,30,100,30);
contentPane.add(1Button);
class RadioListener implements ActionListener {
public void actionPerformed(Action Event e) {
frame2 = new JFrame(e.getActionCommand());
public static void main (String s[]) {
frame = new JFrame("Blabla");

Answer 1

1. MediaTracker - no, ImageIO - s�!
2. One technique for giving any container (like a frame's content pane) a background image, is to use a Border to do it.
import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import javax.swing.border.*;
public class CentredBackgroundBorder implements Border {
    private final BufferedImage image;
    public CentredBackgroundBorder(BufferedImage image) {
        this.image = image;
    public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
        x += (width-image.getWidth())/2;
        y += (height-image.getHeight())/2;
        ((Graphics2D) g).drawRenderedImage(image, AffineTransform.getTranslateInstance(x,y));
    public Insets getBorderInsets(Component c) {
        return new Insets(0,0,0,0);
    public boolean isBorderOpaque() {
        return true;
import java.awt.*;
import java.io.*;
import java.net.URL;
import javax.imageio.*;
import javax.swing.*;
public class BackgroundBorderExample {
    public static void main(String[] args) throws IOException {
        final JFrame f = new JFrame("BackgroundBorderExample");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JTextArea area = new JTextArea(24,80);
        area.setForeground(Color.WHITE);
        area.setOpaque(false);
        area.read(new FileReader("BackgroundBorderExample.java"), null);
        JScrollPane sp = new JScrollPane(area);
        sp.getViewport().setOpaque(false);
        f.getContentPane().add(sp);
        String url = "http://today.java.net/jag/bio/JagHeadshot.jpg";
        sp.setViewportBorder(new CentredBackgroundBorder(ImageIO.read(new URL(url))));
        f.setSize(600,400);
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                f.setLocationRelativeTo(null);
                f.setVisible(true);
}