Welcome to the Constructors and Destructors MCQs Page

Dive deep into the fascinating world of Constructors and Destructors with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Constructors and Destructors, a crucial aspect of Object Oriented Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Constructors and Destructors, 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.

Check out the MCQs below to embark on an enriching journey through Constructors and Destructors. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming.

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

Constructors and Destructors MCQs | Page 8 of 9

Explore more Topics under Object Oriented Programming

01

OOPs Concept and Features

02

Objects and Classes in OOPs

03

Access Specifiers

04

Class Members

05

Member Functions

06

Inheritance and its Types

07

Exception Handling

08

Objects and Pointers

09

Memory Allocation and Variable Scope

10

Overloading

11

Inbuilt Classes

Q71.

The destructors ____________

Have a return type

May have a return type

Of derived classes have return type

Doesn’t have a return type

Discuss

Answer: (d).Doesn’t have a return type

Q72.

The destructor can be called before the constructor if required.

True

False

May be

Can't say

Discuss

Answer: (b).False

Q73.

Which among the following describes a destructor?

A special function that is called to free the resources, acquired by the object

A special function that is called to delete the class

A special function that is called anytime to delete an object

A special function that is called to delete all the objects of a class

Discuss

Answer: (a).A special function that is called to free the resources, acquired by the object

Q74.

When a destructor is called?

After the end of object life

Anytime in between object’s lifespan

At end of whole program

Just before the end of object life

Discuss

Answer: (d).Just before the end of object life

Q75.

Which among the following is correct for abstract class destructors?

It doesn’t have destructors

It has destructors

It may or may not have destructors

It contains an implicit destructor

Discuss

Answer: (a).It doesn’t have destructors

Q76.

If in multiple inheritance, class C inherits class B, and Class B inherits class A. In which sequence are their destructors called, if an object of class C was declared?

~C() then ~B() then ~A()

~B() then ~C() then ~A()

~A() then ~B() then ~C()

~C() then ~A() then ~B()

Discuss

Answer: (c).~A() then ~B() then ~C()

Q77.

Choose the correct sequence of destructors being called for the following code:

class A{ };
class B{ };
class C: public A, public B{ };

~A(), ~B(), ~C()

~B(), ~C(), ~A()

~A(), ~C(), ~B()

~C(), ~B(), ~A()

Discuss

Answer: (d).~C(), ~B(), ~A()

Q78.

When is the destructor of a global object called?

Just before end of program

Just after end of program

With the end of program

Anytime when object is not needed

Discuss

Answer: (a).Just before end of program

Q79.

How the constructors and destructors can be differentiated?

Destructor have a return type but constructor doesn’t

Destructors can’t be defined by the programmer, but constructors can be defined

Destructors are preceded with a tilde (~) symbol, and constructor doesn’t

Destructors are same as constructors in syntax

Discuss

Answer: (c).Destructors are preceded with a tilde (~) symbol, and constructor doesn’t

Q80.

Destructors doesn’t accept parameters.

True

False

May be

Can't say

Discuss

Answer: (a).True

Page 8 of 9

Welcome to the Constructors and Destructors MCQs Page

Constructors and Destructors MCQs | Page 8 of 9

Explore more Topics under Object Oriented Programming

OOPs Concept and Features

Objects and Classes in OOPs

Access Specifiers

Class Members

Member Functions

Inheritance and its Types

Exception Handling

Objects and Pointers

Memory Allocation and Variable Scope

Overloading

Inbuilt Classes

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