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Tag Archives: cpp-virtual

Virtual Function in C++ A virtual function is a member function which is declared within a base class and is re-defined(Overriden) by a derived class.… Read More
The answer to this question depends upon 2 scenarios: Scenario 1: When there is a Virtual function in the program: In this scenario, compiler automatically… Read More
1. What is a pure virtual function? Ans. A pure virtual function (or abstract function) in C++ is a virtual function for which we don’t… Read More
Binding refers to the process of converting identifiers (such as variable and performance names) into addresses. Binding is done for each variable and functions. For… Read More
Function overriding is redefinition of base class function in its derived class with same signature i.e return type and parameters. But there may be situations… Read More
Prerequisite: Virtual Function in C++Calling virtual functions from a constructor or destructor is considered dangerous most of the times and must be avoided whenever possible.… Read More
A virtual function is a member function which is declared within a base class and is re-defined(Overridden) by a derived class. When you refer to… Read More
Predict the output of the following simple C++ program without any virtual function. Want to learn from the best curated videos and practice problems, check… Read More
Can a destructor be pure virtual in C++? Yes, it is possible to have pure virtual destructor. Pure virtual destructors are legal in standard C++… Read More
Sometimes implementation of all function cannot be provided in a base class because we don’t know the implementation. Such a class is called abstract class.… Read More
In Java, we can use final for a function to make sure that it cannot be overridden. We can also use final in Java to… Read More
Virtual functions are used to achieve runtime polymorphism or say late binding or dynamic binding. Inline functions are used for efficiency. The whole idea behind… Read More
  This article introduces the concept of polymorphism and virtual functions, and their use in inheritance. We’ll cover the following Definitions Without Virtual Functions Using… Read More
In C++, virtual functions can be private and can be overridden by the derived class. For example, the following program compiles and runs fine.Take a… Read More