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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 forms. So polymorphism means many forms. There are two types of polymorphism in Java: compile-time polymorphism and runtime polymorphism. We can perform polymorphism in java by method overloading and method overriding. If you overload a static method in Java, it is the example of compile time polymorphism. Here, we will focus on runtime polymorphism in java.  Runtime polymorphism  or  Dynamic Method Dispatch  is a process in which a call to an overridden method is resolved at runtime rather than compile-time.  In this process, an overridden method is called through the reference variable of a superclass. The determination of the method to be called is based on the object being referred to by the reference variable.   Method overriding is an example...