"Poly" in Polymorphism is a Greek word which means many. So, in OOPs, "polymorphism" is the representation of a single function name with different number or sequence of parameters. For example, void fun(int a); void fun(char a); void fun(int a, int b); void fun(int a, long b); void fun(long a, int b); all of the above declared functions are identical/different.   Return type does not matter in the case of polymorphism. For example, void fun(int a); int fun(int a); void fun(int a, int b); int fun(int a, int b); all the functions declared here will be treated as same.   In C++ polymorphism is of three type, Function Overloading, Function overriding and Operator Overloading.

Posted By: Chandra