Late Binding vs. Polymorphism - what is the difference?

Question

I've seen both used interchangebly but do they really mean the same? From my understanding, Polymorphism stretches the fact that you could exchange an instance of a class by an instance of a subclass, and Late Binding means that when you call a method of an instance, the type decides which method (subclass/superclass) gets called.

Answer 1

Wikipedia has a very nice article about this:

http://en.wikipedia.org/wiki/Polymorphism_in_object-oriented_programming

Summary: Late binding is a way to implement polymorphism.