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

OOAD Interview Questions

Questions Answers Views Company eMail

Why are virtual users created?

Wipro,

1044

what is virtual function and pure virtual function ?

Infosys,

964

What are virtual functions, base class pointer, derived class pointer, biding references?

HPCL, Hughes Systique Corporation,

976

What is Abstract method and how different from Virtual Method?

922

What do you mean by virtual function and virtual classes?

MCN Solutions,

1005

What is polymorphism? When is it employed? give an example.

iNautix,

1017

What is the best tool for modeling and ORM framework

Infosys,

1027

What is Overloading ? Is it similar to overriding ?

MCN Solutions,

1000

Explain the use of Vtable and what are the various problems to override the functions?

Ittiam Systems,

935

Does PowerShell support OOPs?

Microsoft,

1020

What is data abstraction? what are the three levels of data abstraction with Example?

TCS,

968

Is it possible to override private virtual methods?

Infosys,

980

Give any criteria when you use an abstract class and an interface?

Sans Pareil IT Services,

933

Define Data Abstraction. What is its importance?

Amazon, Infosys,

975

How to make a class accessible as a web service?

BirlaSoft,

950

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Un-Answered Questions { OOAD }

Explain about inheritance?

1037

How can we restrict inheritance for a class so that no class can be inherited from it?

1079

What is the function of dynamic typing?

1094

Can you tell something about GDI objects?

982

How do I make sure that an object is released in code such as a connection or file object?

1053

Do we require a parameter for constructors?

994

What's the order of call of constructors in inheritiance?

968

What are sealed modifiers?

1061

Explain the implementation phase with respect to oop?

952

Differentiate between overloading and overriding.

1104

How do we implement serialization actually?

920

Explain about message passing in object oriented programming?

986

Explain about the analysis phase?

981

Explain what you understand by function overloading.

962

What's the main difference between arraylist / hashmap and vector / hashtable?

1055

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