Welcome to the Classes and Operator Overloading in C++ MCQs Page

Dive deep into the fascinating world of Classes and Operator Overloading in C++ with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Classes and Operator Overloading in C++, a crucial aspect of Object Oriented Programming Using C++. In this section, you will encounter a diverse range of MCQs that cover various aspects of Classes and Operator Overloading in C++, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Object Oriented Programming Using C++.

Check out the MCQs below to embark on an enriching journey through Classes and Operator Overloading in C++. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming Using C++.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Classes and Operator Overloading in C++. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Classes and Operator Overloading in C++ MCQs | Page 31 of 39

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Q301.

What happens when we try to compile the class definition in following code snippet?

class Birds {};
class Peacock : protected Birds {};

It will not compile because class body of Birds is not defined.

It will not compile because class body of Peacock is not defined.

It will not compile because a class cannot be protectedly inherited from other class.

It will compile succesfully.

Discuss

Answer: (d).It will compile succesfully.

Q302.

Which of the following statement is correct regarding destructor of base class?

Destructor of base class should always be static.

Destructor of base class should always be virtual.

Destructor of base class should not be virtual.

Destructor of base class should always be private.

Discuss

Answer: (b).Destructor of base class should always be virtual.

Q303.

Which of the following two entities (reading from Left to Right) can be connected by the dot operator?

A class member and a class object.

A class object and a class.

A class and a member of that class.

A class object and a member of that class.

Discuss

Answer: (d).A class object and a member of that class.

Q304.

How can we make a class abstract?

By making all member functions constant.

By making at least one member function as pure virtual function.

By declaring it abstract using the static keyword.

By declaring it abstract using the virtual keyword.

Discuss

Answer: (b).By making at least one member function as pure virtual function.

Q305.

Which of the following statements is correct when a class is inherited publicly?

Public members of the base class become protected members of derived class.

Public members of the base class become private members of derived class.

Private members of the base class become protected members of derived class.

Public members of the base class become public members of derived class.

Discuss

Answer: (d).Public members of the base class become public members of derived class.

Q306.

Which of the following statements is correct about the constructors and destructors?

Destructors can take arguments but constructors cannot.

Constructors can take arguments but destructors cannot.

Destructors can be overloaded but constructors cannot be overloaded.

Constructors and destructors can both return a value.

Discuss

Answer: (b).Constructors can take arguments but destructors cannot.

Q307.

Which of the following access specifies is used in a class definition by default?

Protected

Public

Private

Friend

Discuss

Answer: (c).Private

Q308.

Which of the following statement is correct with respect to the use of friend keyword inside a class?

A private data member can be declared as a friend.

A class may be declared as a friend.

An object may be declared as a friend.

We can use friend keyword as a class name.

Discuss

Answer: (b).A class may be declared as a friend.

Q309.

Which of the following keywords is used to control access to a class member?

Default

Break

Protected

Asm

Discuss

Answer: (c).Protected

Q310.

Which of the following can access private data members or member functions of a class?

Any function in the program.

All global functions in the program.

Any member function of that class.

Only public member functions of that class.

Discuss

Answer: (c).Any member function of that class.

Page 31 of 39

Welcome to the Classes and Operator Overloading in C++ MCQs Page

Classes and Operator Overloading in C++ MCQs | Page 31 of 39

Explore more Topics under Object Oriented Programming Using C++

Basics of C++ Programming

Data Types in C++

Pointers,Arrays and Structures in C++

Functions in C++

Namespaces and Exceptions in C++

Derived Classes,Templates and Exception Handling in C++

Class Hierarchies,Library and Containers

Objects and Iterators in C++

Strings,Streams and Numerics in C++

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