ISRO Computer Science (CSE) 2008 - Question 73

All ISRO Computer Science (CSE) papers | ISRO Computer Science (CSE) 2008

We can make a class abstract by

  • A. Declaring it abstract using the virtual keyword
  • B. Making at least one member function as virtual function
  • C. Making at least one member function as pure virtual function
  • D. Making all member function const.

Answer: C. Making at least one member function as pure virtual function

Explanation: In C++, a class with at least one pure virtual function is abstract.

| | All questions of ISRO Computer Science (CSE) 2008