class TiledContainer extends Container {
    Image background;

    TiledContainer(Image image) {
        setBackgroundImage(image);
    }
    public void setBackgroundImage(Image image) {
        this.background = image;
        MediaTracker tracker = new MediaTracker(this);
        tracker.addImage(background, 0);
        // wait for the image to load
        try { tracker.waitForAll(); } catch (Exception e) {}
    }
    public void update(Graphics g) {
        paint(g);
    }