Skip to content
Related Articles

Related Articles

C++ | Virtual Functions | Question 6
  • Difficulty Level : Hard
  • Last Updated : 12 Oct, 2013

Predict the output of following program.




#include<iostream>
using namespace std;
class Base
{
public:
    virtual void show() = 0;
};
  
class Derived : public Base { };
  
int main(void)
{
    Derived q;
    return 0;
}


(A) Compiler Error: there cannot be an empty derived class
(B) Compiler Error: Derived is abstract
(C) No compiler Error


Answer: (B)

Explanation: If we don’t override the pure virtual function in derived class, then derived class also becomes abstract class.


Quiz of this Question

Attention reader! Don’t stop learning now. Get hold of all the important C++ Foundation and STL concepts with the C++ Foundation and STL courses at a student-friendly price and become industry ready.

My Personal Notes arrow_drop_up
Recommended Articles
Page :