In this article, we will discuss the behavior of Virtual Function in the derived class and derived class from the Abstract Base Class in C++.… Read More
Tag Archives: Virtual Functions
Virtual Function in C++ A virtual function is a member function which is declared within a base class and is re-defined(Overridden) by a derived class.… Read More
Predict the output of following C++ program #include<iostream> using namespace std; class Base { public: virtual void show() { cout<<" In Base \n"; }… Read More
#include <iostream> using namespace std; class A { public: virtual void fun() { cout << "A::fun() "; } }; class B: public A… Read More
Predict the output of following C++ program. Assume that there is no alignment and a typical implementation of virtual functions is done by the compiler.… Read More
Can static functions be virtual? Will the following program compile? #include<iostream> using namespace std; class Test { public: virtual static void fun() { }… Read More
#include<iostream> using namespace std; class Base { public: Base() { cout<<"Constructor: Base"<<endl; } virtual ~Base() { cout<<"Destructor : Base"<<endl; } }; class Derived: public Base… Read More
Can a destructor be virtual? Will the following program compile? #include <iostream> using namespace std; class Base { public: virtual ~Base() {} }; int main()… Read More
Can a constructor be virtual? Will the following program compile? #include <iostream> using namespace std; class Base { public: virtual Base() {} }; int main()… Read More
#include<iostream> using namespace std; class Base { public: virtual void show() = 0; }; class Derived: public Base { public: void show() {… Read More
Predict the output of following program. #include<iostream> using namespace std; class Base { public: virtual void show() = 0; }; class Derived : public… Read More
#include<iostream> using namespace std; class Base { public: virtual void show() = 0; }; int main(void) { Base b; Base *bp; return 0;… Read More
Which of the following is true about pure virtual functions? 1) Their implementation is not provided in a class where they are declared. 2) If… Read More
Output of following program #include<iostream> using namespace std; class Base { public: virtual void show() { cout<<" In Base \n"; } }; class… Read More
Predict output of the following program #include<iostream> using namespace std; class Base { public: virtual void show() { cout<<" In Base \n"; } };… Read More
