Get started with polymorphism in Java and how to do method invocation in polymorphic method calls.

Learn the four types of polymorphism in Java, then start using subtype polymorphism to execute different forms of the same Java method.

I understand (to a slightly lesser extent) polymorphism. I was just trying to get a better grasp on method overriding...so, you know, I could have a better understanding of what I'm teaching.

Polymorphism enables descendant classes to use the methods of the base class or override them if the base class implementation is not sufficient.