Exercise 2

[stuartjj]

What did you all get for an answer to exercise 2?

I think the answer is yes, since the id type can be used to store objects that belong to any class.

[StanleyRShapiro]

One of my concerns was whether the Rectangle shares methods (in name) with the other classes that take as arguments, or return different types than the classes previously assigned to dataValue, but that shouldn't matter here since dataValue is only being set to an instance of an object, and no actual method is being sent to the instance itself.