Question

In context of C++, consider the following statements:

I. Friend function of a class can directly access both private and protected data of the class.

II. Member function of derived class can directly access both private and protected data of the class.

The true statement(s) is / are:

1. Only I
2. Only II
3. Both I and II
4. Neither I Nor II

Answer 1

Correct Answer - Option 1 : Only I

Friend Function 

In C++, a friend function can be given a special grant to access private and protected members.

Member function of derived class cannot be directly access both private and protected data of the class.

Therefore only 1st statement is correct

1) Friends should be used only for limited purpose. too many functions or external classes are declared as friends of a class with protected or private data, it lessens the value of encapsulation of separate classes in object-oriented programming.

2) Friendship is not mutual. If class A is a friend of B, then B doesn’t become a friend of A automatically.

3) Friendship is not inherited

4) The concept of friends is not there in Java.