OOPS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

OOPS Interview Questions

Questions Answers Views Company eMail

What are virtual functions?

2 5371

What is friend function?

Wipro,

12 24624

What is a scope resolution operator?

HP, IBS,

5 17540

What do you mean by inheritance?

IBS,

2301

What is abstraction?

9 13650

What is polymorphism? Explain with an example.

48 132983

What is encapsulation?

TCS,

17 22479

What do you mean by binding of data and functions?

3 10383

What is function overloading and operator overloading?

4 16773

What is virtual class and friend class?

IBS, Intel, Wipro,

5 35992

What do you mean by inline function?

6 14953

What do you mean by public, private, protected and friendly?

CA,

3 10633

When is an object created and what is its lifetime?

IBM,

4 17568

What do you mean by multiple inheritance and multilevel inheritance? Differentiate between them.

2 14894

Difference between realloc() and free?

HP,

9 26430

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Un-Answered Questions { OOPS }

What is methods in oop?

981

Which language is pure oop?

1012

What are properties in oop?

1089

What is ambiguity in inheritance?

1120

IS IT NECESSARY TO INITIALIZE VARIABLE? WHAT IF THE INSTANCE VARIABLE IS DECLARED final ? IS IT NECESSARY TO INITIALIZE THE final VARIABLE AT THE TIME OF THEIR DECLARATION?

2070

Why is polymorphism used?

1041

Why is oop better than procedural?

1084

How oops is better than procedural?

1100

What is the difference between abstraction and polymorphism?

1101

What is difference between abstraction and encapsulation?

1083

What is use of overloading?

1150

What are the types of abstraction?

1077

explain sub-type and sub class? atleast u have differ it into 4 points?

2317

What do you mean by variable?

1040

Which is not an object oriented programming language?

997

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