I need more than spellcheck

Embarrassment. I think that's my middle name.

Tonight I was teaching Java Graphics and Event Handlers.  To illustrate Java graphics I used a timer that would create the illusion of moving a ball across a frame by incrementing the x and y coordinates of the ball by 3 pixels every 25 milliseconds.  The event handler would just repaint the screen.

Here is a snippet of my code:
.....
public class MovingBall extends JPanel
{
   //Code here to create variables
    MovingBall()
    {
      //Constructor
     }
     //Create inner class for event handler
    private class BallHandler implements ActionListener
    {
    .....

Oh my.