Recall the classes from Lab #2: Temperature and its child Temperature2, TimeOfDay and its child TimeOfDay12Or24, and SixSidedDie and its child SixSidedDieWithCounts.
Also recall from lecture the (Tossable)Coin class and its descendants, BiasedCoin and BiasedCoinWithCounts. Aspects of the Counter class hierarchy were covered in lecture and Lab #3.