Ball Class For Pong Won't Add To JPanel

I am trying to make a game of pong and am having trouble adding my ball class to a JPanel. Here is what I have so far.

package pong;
import java.awt.*;
public class Ball{
private int xPos,yPos;
public int dx = 5, dy = -5;
public Ball()

[code].....

I want to be able to add this to a JPanel but it is not allowing me to add the ball. Here is my JPanel

package pong;
import java.awt.*;
import javax.swing.JPanel;
public class BallTestPanel

[Code] ....

It reads panel.add(ball); as an error. I says that I need to change the type ball to component.