Java - Dynamic Polymorphism

Dynamic polymorphism:-(Runtime polymorphism)

        Methods are binding to an object during runtime.

Method overriding:-

        A class can have a method which name is same as method name of it's base class including same args,same data types and same return type(ie same signature).

        Derived class can modify the statements of its base class using overriding.

        To achieve dynamic polymorphism.

Dynamic method dispatch:-

        An object of a class can refer instance of itself and instance of it's derived classes.

        By using this object, we can invoke  overridden methods only, because of it refers methods of its type, but invokes methods of which instance has referred(assigned) now.

        methods are resolved(determined) at runtime.