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OOPS Interview Questions
Questions Answers Views Company eMail

What is OOPS and How it is different from Procedural Programming ?

HP, Infosys, Thyrocare,

23 65914

what is meant by files?

Infosys,

4 8624

is java purely oop Language?

HCL, Infosys, TCS,

49 48254

What are the OOPS concepts?

A1 Technology, Bajaj, CTS, EDS, HP, Infosys, Intel, Microsoft, MNC, Persistent, PlanetSoft, ProConstructor, TCS, Virtusa, Wipro, YSoft Solutions,

106 298482

What is Object and Class? What are the differences between them?

 5 9166

What is Inheritance, Multiple Inheritance, Shared and Repeatable Inheritance?

Accenture, L&T,

4 18595

What is Method overloading?

 5 8180

Can we call a base class method without creating instance?

 6 21208

In which cases you use override and new base?

 2 6518

You have one base class virtual function how will call that function from derived class?

 4 7726

In which Scenario you will go for Interface or Abstract Class?

InfoAxon Technologies,

1 9741

polymorphism means?

BFL,

6 11685

Describe the difference between a Thread and a Process?

Siebel Systems,

11 29228

Describe what an Interface is and how it?s different from a Class.

Spinsys,

7 20844

What is the difference between XML Web Services using ASMX and .NET Remoting using SOAP?

 1 7878

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Un-Answered Questions { OOPS }

if i have same function with same number of argument but defined in different files. Now i am adding these two files in a third file and calling this function . which will get called and wht decide the precedence?

2760

What is encapsulation with example?

580

What is the difference between encapsulation and polymorphism?

596

what type of question are asked in thoughtworks pair programming round ?

1762

Can static class have constructor?

585




Is data hiding and abstraction same?

569

What is use of overloading?

610

Why do we use polymorphism in oops?

581

Can abstract class have normal methods?

614

What is class and example?

569

What are constructors in oop?

594

Why multiple inheritance is not allowed?

584

What is the difference between procedural programming and oops?

557

What is Difference Between Inheritance and creating object and getting data? means Class A extends B{ B.getMethod();} (OR) Class A{ b obj=new B(); obj.getMethod(); }

1988

Why polymorphism is used in oops?

585

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