11. Inheritance. Handles, extends, polymorphism, java hierarchy.
    OO design, 

*) Line follower base class, inherrited classes over ride a funciton
   which determines if the sensors have found a line. This allows for
   follow different coloured lines (black lines, white lines, other
   colours).

*) Change the Temperature Class, so that there is a CelsiusTemp, and
   a FahrenheitTemp class.



© Copyright 2000 By Joel Adams, Ryan VanderBijl.
Lisenced under the GPL. You may use it, but we would like you to share any ideas, etc with us and the world.