I want to create a class hierarchy in which I have a class Block which can be instantiated by itself. Then I have a class List which inherits from Block and contains methods common to all lists, and finally I have classes OrderedList, LableledList etc that inherit from List. I want people to be able to instantiate OrderedList etc, but not List. In other words, you can instantiate a plain Block and you can instantiate an OrderedList that inherits from List that inherits from Block, but you can't instantiate List. All attempts to Google this lead to Abstract Base Classes, but none provides and example that fits this case and I am having trouble extrapolating. Continue reading...
