CodingForums.com - Move rectangle from position += 1 without flicker in applet

Hi
I´m trying to move a filled rectangle by increasing the x-position by one in a applet, but it flickers. I´m not sure if the code below is the right way to go but this is how I have programmed?

Code:

public class Game extends Applet implements Runnable

{

    private BufferedImage bi = null;

    private TexturePaint paint = null;

    private Graphics2D g2d = null;

    private Rectangle rect = new Rectangle(0,0,50,50);

    private Boolean isRunningFirstTime = true;

    private Thread thread = null;

    private int x = 0;



    public void init()

    {

    }



    public void paint(Graphics g)

    {

        update(g);

    }



    public void update(Graphics g)

    {

        if (isRunningFirstTime)

        {

            bi = new BufferedImage(50, 50, BufferedImage.TYPE_INT_RGB);

            Graphics2D g2 = bi.createGraphics();

            g2.setColor(Color.red);

            g2.fillRect(0, 0, 50, 50);

            paint = new TexturePaint(bi, new Rectangle(50, 50));

            isRunningFirstTime = false;

        }



        g2d = (Graphics2D) g;

        g2d.setColor(Color.white);

        g2d.clearRect(0, 0, getWidth(), getHeight());

        g2d.setPaint(paint);

        g2d.fill(rect);

    }



    public void run()

    {

        while (thread != null)

        {

                rect.setLocation(x+=1, 0);

                repaint();

                try

                {

                        Thread.sleep(10);

                }

                catch (InterruptedException error)

                {

                }

        }



    }



    public void start() {

            if (thread == null) {

                    thread = new Thread(this);

                    thread.start();

            }

    }



    public void stop() {

            thread = null;

    }

}

As I said, it flickers! How do I solve this?