C++ Questions :

1. Having a member function defined as int f1(int x, int y) const means:

A. The function f1 cannot change x or y

B. The function f1 cannot return a value that is based on calculations of class member variables

C. The function f1 cannot change the class member variables

D. The function f1 cannot change any value iniside, it only returns

2. For which type of class private and protected members of the class can be accessed from outside the same class in which they are declared

A. No such class exist

B. Friend

C. Static

D. Virtual

3. Inside a function definition for a member function of an object with data element x, which of the following is equivalent to this->x:

A. (*this).x

B. *this->x

C. x

D. Both A and C are correct