Polymorphism refers to the ability of ... methods in addition to or instead of abstract methods. For example, an abstract Vehicle class might declare fields describing its make, model, and year.

For example, you can define methods ... Support for polymorphism: You can achieve polymorphism using both interface and abstract classes. Most importantly, you can have a derived class extend ...

This article uses examples to explain how to efficiently and correctly use inheritance and polymorphism in preparation ... proven methodology for writing abstract, highly reusable, and highly ...