Polymorphism in Java is a concept by which we can perform a single action in different ways. Polymorphism is derived from 2 Greek words: poly and morphs. The word "poly" means many and "morphs" means ...

My code is a perfect example of Run-Time Polymorphism in Java. Animal is the parent class with a method sound(). Dog and Cat are child classes that override the sound() method with their own behavior.

Polymorphism with the core Java classes. We use polymorphism all the time in the core Java classes. One very simple example is when we instantiate the ArrayList class declaring the List interface ...