Exercise Set 1, question 6

Add the following instance variables to the class.

  private int myTimesBred;
            // the number of times a fish bred in its lifetime


Add the following statement to the initialize method.

  myTimesBred = 0;


Modify the breed method to increment myTimesBred each time the fish breeds.

  myTimesBred++;


Modify the die method.

  protected void die()
  {
    Debug.turnOn();  // if debug is not already turned on
    Debug.println(toString() + " about to die. ");
    Debug.println(toString() + " bred " + myTimesBred + " times. ");
    Debug.restoreState();
    environment().remove(this);
  }