Help!! How to put more than one JComponent on one JFrame

Question

Hi!
I'm having a big problem. I'm trying to create an animation that is composed of various images. In one JComponent I have an animation of a sprite moving left and right on the screen(Which works right now). On another JComponent I have a still image that I want to put somewhere on the screen. For some reason I can only see what I add last to the JFrame. Can somebody help me? Thanks
P.S I don't want to have all the images on the same JComponent. I want to have different classes for different images or animations. You can get the sprites I use from here http://www.flickr.com/photos/59719950@N00/
import java.awt.Color;
import javax.swing.JFrame;
public class ScreenSaverViewer
     public static void main(String[] args)
     Character characterGame = new Character();
     basketballHoop hoopz = new basketballHoop();
     //Clock clock = new Clock();
     JFrame app = new JFrame("Screensaver");
        app.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
        app.getContentPane().add(hoopz);
        //app.getContentPane().add(clock);
        app.getContentPane().add(characterGame);
        app.setSize (450,450);
        app.setBackground (Color.black);
        app.setLocation (300,200);
        app.setVisible (true);
        characterGame.run();
import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
import java.util.ArrayList;
public class Character extends JComponent
    BufferedImage backbuffer;
    int sliderSpeed = 1;
    int sliderX = 1;
    int sliderY = 1;
    int direction = 1;
    Image myImg = Toolkit.getDefaultToolkit().getImage ("/home/climatewarrior/Sprites_gabriel/muneco_0.png");
    private Image fetchImage(int x)
         ArrayList<Image> images = new ArrayList<Image>();
         for (int i = 0; i < 4; i++)
              images.add(i, Toolkit.getDefaultToolkit().getImage ("/home/climatewarrior/Sprites_gabriel/muneco_" + i + ".png"));
         return images.get(x);
    private void displayGUI()
        int appWidth = getWidth();
        int appHeight = getHeight();
        backbuffer = (BufferedImage) createImage (appWidth, appHeight);
        Graphics2D g2 = backbuffer.createGraphics();
        g2.setRenderingHint (RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g2.drawImage (myImg, sliderX, sliderY, getWidth() / 2 * direction, getHeight() / 2, this);
        g2.dispose();
        repaint();
    public void paintComponent (Graphics g)
        super.paintComponent(g);
        if (backbuffer == null)
             displayGUI();
        g.drawImage(backbuffer, 0, 0, this);
   public void run ()
        while(true)
               sliderX = -(getWidth() - getWidth()/2);
               sliderY = getHeight()/3;
               int x = 0;
               int increment = 1;
               do
               sliderX += increment;
               if (sliderX % 30 == 0)
                         myImg = fetchImage(x);
                         direction = -1;
                         x++;
                         if (x == 4)
                         x = 0;
               displayGUI();
               } while (sliderX <= getWidth() + (getWidth() - getWidth()/2));
               do
               sliderX -= increment;
               if (sliderX % 30 == 0)
                    myImg = fetchImage(x);
                    direction = 1;
                    x++;
                    if (x == 4)
                         x = 0;
               displayGUI();
               } while (sliderX >= -(getWidth() - getWidth()/2));
import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
public class Clock extends JComponent
    BufferedImage backbuffer;
    Image myImg = Toolkit.getDefaultToolkit().getImage("/home/climatewarrior/Sprites_gabriel/score_board.png");
    public void paintComponent (Graphics g)
         g.drawImage(myImg, 250, 100, getWidth()/2, getHeight()/3, null);
         super.paintComponent (g);
         repaint();
}

Answer 1

Here's a file I had hanging around. It's about as simple as they come, hopefully not too simple!
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
class SimpleAnimationPanel extends JPanel
    private static final int DELAY = 20;
    public static final int X_TRANSLATION = 2;
    public static final int Y_TRANSLATION = 2;
    private static final String DUKE_FILE = "http://java.sun.com/" +
              "products/plugin/images/duke.wave.med.gif";
    private Point point = new Point(5, 32);
    private BufferedImage duke = null;
    private Timer timer = new Timer(DELAY, new TimerAction());
    public SimpleAnimationPanel()
        try
            // borrow an image from sun.com
            duke = ImageIO.read(new URL(DUKE_FILE));
        catch (MalformedURLException e)
            e.printStackTrace();
        catch (IOException e)
            e.printStackTrace();
        setPreferredSize(new Dimension(600, 400));
        timer.start();
    // do our drawing here in the paintComponent override
    @Override
    protected void paintComponent(Graphics g)
        super.paintComponent(g);
        if (duke != null)
            g.drawImage(duke, point.x, point.y, this);
    private class TimerAction implements ActionListener
        public void actionPerformed(ActionEvent e)
            int x = point.x;
            int y = point.y;
            Dimension size = SimpleAnimationPanel.this.getSize();
            if (x > size.width)
                x = 0;
            else
                x += X_TRANSLATION;
            if (y > size.height)
                y = 0;
            else
                y += Y_TRANSLATION;
            point.setLocation(new Point(x, y)); // update the point
            SimpleAnimationPanel.this.repaint();
    private static void createAndShowUI()
        JFrame frame = new JFrame("SimpleAnimationPanel");
        frame.getContentPane().add(new SimpleAnimationPanel());
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    public static void main(String[] args)
        java.awt.EventQueue.invokeLater(new Runnable()
            public void run()
                createAndShowUI();
}