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

OOPS Interview Questions

Questions Answers Views Company eMail

What is interface? When and where is it used?

2166

What is virtual function?where and when is it used?

Sitel,

2 5666

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

2191

How many types of access specifier in c# and vb.net?

Infosys,

1 5321

Hi All, I am new to programming and want to know how can i write a code to take input of 2 numbers from user and swap it without using a temp variable?

NIIT,

2 4531

How can i write a code in c# to take a number from the user and then find all the prime numbers till the number entered by the user.

NIIT, TCS,

4 7528

hi all..i want to know oops concepts clearly can any1 explain??

Eureka Forbes,

2126

c++ is a pure object oriented programming or not?

Wipro,

5 6932

why we are declare the function in the abstract class even though we are declaring it in Derived class?

TCS,

1 3981

Write a C++ program without using any loop (if, for, while etc) to print prime numbers from 1 to 100 and 100 to 1 (Do not use 200 print statements!!!)

HCL,

2103

which structured data type is not used in c++? 1.union 2.structure 3.string 4.boolean

HCL, Wipro,

2 6059

Write a program to reverse a string using recursive function?

TCS,

2339

Write a program to implement OOPS concepts such as inheritance, polymorphism, friend function, operator overloading?

TCS,

4745

c++ provides classes...and classes do what we want but why then strcut are used...if we say data hiding... it is also provided by c++ in structs then why to prefer clasess

HCL, TCS,

1 4807

Is this job good for future? can do this job post grduate student?

2164

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Un-Answered Questions { OOPS }

Which is not an object oriented programming language?

984

What are the 3 principles of oop?

1115

How do you answer polymorphism?

1058

What language is oop?

1009

How do you define social class?

1062

What is new keyword in oops?

1041

Is react oop?

1061

Is enum a class?

1059

What is the purpose of polymorphism?

1122

What is encapsulation c#?

1078

is there any choice in opting subjects like 4 out of 7

2169

What is methods in oop?

976

What is difference between data abstraction and encapsulation?

1079

program for insertion ,deletion,sorting in double link list

2683

What is overriding vs overloading?

1058

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