Which keyword is used to make a non member function as friend function of a class Mcq?

Explanation: friend keyword is used to declare a friend function in C++.

Which keyword is used to represent a friend function?

A friend function in C++ is a function that is preceded by the keyword “friend”. When the function is declared as a friend, then it can access the private and protected data members of the class. A friend function is declared inside the class with a friend keyword preceding as shown below.

What is Friend member functions in C++ Mcq?

Explanation: Friend function in C++ is a function which can access all the private, protected and public members of a class.

Where does keyword friend should be placed Mcq?

Correct Option: C

The keyword friend is placed only in the function declaration of the friend function and not in the function definition because it is used toaccess the member of a class.

Which of the following is correct about friend function Mcq?

Which of the following is correct about friend functions? Explanation: Friend function can be declared either in private or public part of the class. A friend function cannot access the members of the class directly. They use the dot membership operator with a member name.

Friend Functions in C++ Programming | Object Oriented Programming in C++

What is a friend function in C++? *?

A friend function in C++ is defined as a function that can access private, protected and public members of a class. The friend function is declared using the friend keyword inside the body of the class.

Which is the syntax of friend function Mcq?

3. What is the syntax of friend function? Explanation: In option a, the class2 is the friend of class1 and it can access all the private and protected members of class1. 4.

Which keyword is used to declare virtual functions?

Which keyword is used to declare virtual functions? Explanation: The virtual keyword is used to declare virtual functions. Anonymous keyword is used with classes and have a different meaning. The virtual functions are used to call the intended function of the derived class.

Which among the following is not a member of the class?

Out of the following, which is not a member of the class? Explanation: Friend function is not a member of the class.

Which of the following function is not inherited Mcq?

Constructor cannot be inherited but a derived class can call the constructor of the base class. In C++, friend is not inherited. If a base class has a friend function, then the function does not become a friend of the derived class(es).

Which of the following is are the characteristics of friend function?

Characteristics of a Friend function:

It cannot be called using the object as it is not in the scope of that class. It can be invoked like a normal function without using the object. It cannot access the member names directly and has to use an object name and dot membership operator with the member name.

Where we should declare a function as a friend to a class?

A friend function can access the private and protected data of a class. We declare a friend function using the friend keyword inside the body of the class.

Is Cin a keyword?

cout is used for output, cin for input. cout and cin are not key words in the C++ language. They are variables, instances of classes, that have been declared in <iostream>.

What is friend function and friend class explain with example?

Friend class and function in C++

Friend Class A friend class can access private and protected members of other class in which it is declared as friend. It is sometimes useful to allow a particular class to access private members of other class.

Which of the following is NOT type of class Mcq?

1. Which of the following is not type of class? Explanation: Only 9 types of classes are provided in general, namely, abstract, final, mutable, wrapper, anonymous, input-output, string, system, network. We may further divide the classes into parent class and subclass if inheritance is used.

What is the other name used for functions inside a class member variables member functions class functions class variables?

In addition to holding data, classes (and structs) can also contain functions! Functions defined inside of a class are called member functions (or sometimes methods).

What is virtual function in C++ Mcq?

Virtual functions are functions that can be overridden in derived class with the same signature.

Which keyword should be used to declare static variables?

Explanation: The keyword used to declare static variables is static. This is must be used while declaring the static variables. The compiler can make variables static if and only if they are mentioned with static keyword.

What happens if non static member are used in static member function?

What happens if non static members are used in static member function? Explanation: There must be specific memory space allocated for the data members before the static member functions uses them. But the space is not reserved if object is not declared.

What is friend function declaration?

The friend declaration appears in a class body and grants a function or another class access to private and protected members of the class where the friend declaration appears.

What are the functions of the dot operator Mcq?

Answer: The dot operator(.) is used to access the instance variables and methods of class objects.It is also used to access classes and sub-packages from a package.

What are const member functions Mcq?

Explanation: The constant member functions are a special type of member functions. These are intended to restrict any modification in to the values of object which is used to invoke that function. This is done to ensure that there are no accidental modifications to the object. 2.

What is cin and cout iostream?

cin is an object of the input stream and is used to take input from input streams like files, console, etc. cout is an object of the output stream that is used to show output. Basically, cin is an input statement while cout is an output statement. They also use different operators.

Why are cin and cout not a keyword?

They are not considered as keywords because they are objects included in header file <iostream> . cin is an object of class istream and cout is an object of ostream class . Also because we can handle input/output in c++ using scanf() and printf() which are functions . This we won't consider cin /cout as keywords .