public class GoodThreadBall {
    
    /**the radius of the ball*/
    public static final int BALL_RADIUS = 8;    
    
    /**the x location of the ball*/
    private int xPos;
    
    /**the y location of teh ball*/
    private int yPos;
    
    
    /**
     * creates a new ball given the starting x and y position
     */
     public GoodThreadBall (int xPos, int yPos) {
         this.xPos =  xPos;
         this.yPos =  yPos;         
     }
     
     
     /**
      * updates the the ball to move to the right
      */
      public void update() {
        
        this.xPos++;
        if (xPos > 600) {
            xPos = 0;
        }
        
      } //end update
      
      
       /**
      * gets the x location
      */
      public int getXPos() {
        return this.xPos;
      }
      
      /**
       * gets the y location
       */
       public int getYPos() {
        return this.yPos;
       }
       
} //end class good thread bal