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Welcome to the Object Oriented Programming MCQs Page

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

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

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

Object Oriented Programming MCQs | Page 8 of 26

Explore more Topics under Data Structures and Algorithms

Q71.
How many constructors can a class have?

a.

0

b.

1

c.

2

d.

any number

Discuss
Answer: (d).any number
Q72.
The new operator

a.

returns a pointer to the variable

b.

creates a variable called new

c.

obtains memory for a new variable

d.

tells how much memory is available

Discuss
Answer: (c).obtains memory for a new variable
Q73.
Consider the following statements:
int x = 22,y=15;
x = (x>y) ? (x+y) : (x-y);
What will be the value of x after executing these statements?

a.

22

b.

37

c.

7

d.

Error. Cannot be executed

Discuss
Answer: (b).37
Q74.
An exception is caused by

a.

a hardware problem

b.

a problem in the operating system

c.

a syntax error

d.

a run-time error

Discuss
Answer: (d).a run-time error
Q75.
A template class

a.

is designed to be stored in different containers

b.

works with different data types

c.

generates objects which must be identical

d.

generates classes with different numbers of member functions

Discuss
Answer: (b).works with different data types
Q76.
Which of the following is the valid class declaration header for the derived class d with base classes b1 and b2?

a.

class d : public b1, public b2

b.

class d : class b1, class b2

c.

class d : public b1, b2

d.

class d : b1, b2

Discuss
Answer: (a).class d : public b1, public b2
Q77.
A library function exit() causes an exit from

a.

the loop in which it occurs

b.

the block in which it occurs

c.

the function in which it occurs

d.

the program in which it occurs

Discuss
Answer: (d).the program in which it occurs
Q78.
RunTime polymorphism is achieved by ___________

a.

friend function

b.

virtual function

c.

operator overloading

d.

function overloading

Discuss
Answer: (b).virtual function
Q79.
An array element is accessed using

a.

a FIFO approach

b.

an index number

c.

the operator

d.

a member name

Discuss
Answer: (b).an index number
Q80.
If there is a pointer p to object of a base class and it contains the address of an object of a derived class and both classes contain a virtual member function abc(), then the statement p->abc(); will cause the version of abc() in the __________class to be executed.

a.

Base Class

b.

Derived class

c.

Produces compile time error

d.

produces runtime error

Discuss
Answer: (b).Derived class
Page 8 of 26

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