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 5277

What is friend function?

Wipro,

12 24254

What is a scope resolution operator?

HP, IBS,

5 17331

What do you mean by inheritance?

IBS,

2256

What is abstraction?

9 13327

What is polymorphism? Explain with an example.

48 131217

What is encapsulation?

TCS,

17 21940

What do you mean by binding of data and functions?

3 10260

What is function overloading and operator overloading?

4 16568

What is virtual class and friend class?

IBS, Intel, Wipro,

5 35748

What do you mean by inline function?

6 14731

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

CA,

3 10482

When is an object created and what is its lifetime?

IBM,

4 17395

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

2 14769

Difference between realloc() and free?

HP,

9 26083

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Un-Answered Questions { OOPS }

Why do we need oop?

1119

What is encapsulation oop?

996

Why we use classes in oop?

982

What are the important components of cohesion?

976

What is the highest level of cohesion?

991

What is the main feature of oop?

1113

What is debug class?what is trace class? What differences are between them? With examples.

2140

What is polymorphism and its types?

1014

why reinterpret cast is considered dangerous?

2340

what is different between oops and c++

2466

What is the fundamental idea of oop?

1091

What is property in oops?

1003

Why is encapsulation used?

950

What are oops methods?

949

Which method cannot be overridden?

1029

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