C++ | Virtual Functions | Question 6
Predict the output of following program.
Take a step-up from those "Hello World" programs. Learn to implement data structures like Heap, Stacks, Linked List and many more! Check out our Data Structures in C course to start learning today.
#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.
