Question 5: Predict the output.

class BaseClass
{
public:
    virtual void display() = 0;
};


void BaseClass::display()
{
    std::cout<<"Defination of Pure Virtual Function\n";
}


class DeriveClass : public BaseClass
{
public:
    virtual void display()
    {
        std::cout<<"Defination of Derive Class Function\n";
        BaseClass::display();
    }
};


int main()
{
    BaseClass* obj = new DeriveClass();
    obj->display();
}






Options:


a)     Compilation Error. As pure virtual function has a body which is not allowed.


b)    Run time crash.


c)     Defination of Derive Class Function.
     Defination of Pure Virtual Function.


d)    None of the above.






Answer: c