int w = 100;
        int h = 100;
        int pix[] = new int[w * h];
        int index = 0;
        for (int y = 0; y < h; y++) {
            int red = (y * 255) / (h - 1);
            for (int x = 0; x < w; x++) {
                int blue = (x * 255) / (w - 1);
                pix[index++] = (255 << 24) | (red << 16) | blue;
            }
        }
        Image img = createImage(new MemoryImageSource(w, h, pix, 0, w));
 
 

        int pixels[];
        MemoryImageSource source;

        public void init() {
            int width = 50;
            int height = 50;
            int size = width * height;
            pixels = new int[size];

            int value = getBackground().getRGB();
            for (int i = 0; i < size; i++) {
                pixels[i] = value;
            }

            source = new MemoryImageSource(width, height, pixels, 0, width);
            source.setAnimated(true);
            image = createImage(source);
        }

        public void run() {
            Thread me = Thread.currentThread( );
            me.setPriority(Thread.MIN_PRIORITY);

            while (true) {
                try {
                    thread.sleep(10);
                } catch( InterruptedException e ) {
                    return;
                }

                // Modify the values in the pixels array at (x, y, w, h)

                // Send the new data to the interested ImageConsumers
                source.newPixels(x, y, w, h);
            }
        }