Runtime Polymorphism is Achieved by _____

All About Friend function, Virtual function, Operator overloading, Function overloading

Friend function:

The private and protected data of a class can be accessed using a function if it is declared as a friend function.

Runtime polymorphism:

When a call to an overridden method is made, runtime polymorphism resolves the call during runtime rather than at compile time.

Virtual functions are used to achieve runtime polymorphism.

Virtual function:

Runtime polymorphism is typically achieved through virtual functions.

Operator overloading:

Redefinition of operators is made possible by operator overloading.

Operator overloading is used to provide compile-time polymorphism.

Function overloading:

Function overloading lowers the cost of using multiple functions to execute comparable tasks under various function names.

Operator overloading is used to provide compile-time polymorphism.

Summary:-

Runtime polymorphism is achieved by _____ 1. Friend function 2. Virtual function 3. Operator overloading 4. Function overloading

Virtual function achieves the Runtime polymorphism. It is a member function which is expected to be redefined in derived classes.

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