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

OOAD Interview Questions

Questions Answers Views Company eMail

Write about abstract base classes?

1029

Write a note on encapsulation?

1001

Can encapsulation be called as a security device?

987

How can I be thrown polymorphically?

978

What is meant by inheritance? what are the advantages of inheritance?

1059

What is super keyword?

975

Difference between class and an object?

984

What are base class, sub class and super class?

1068

Which oops concept is used as reuse mechanism?

3532

Write basic concepts of oops?

996

Do we require parameter for constructors?

1126

What are different types of arguments?

1100

What is sealed modifiers?

1018

Which oops concept exposes only necessary information to the calling functions?

1009

Explain colloboration

1063

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Un-Answered Questions { OOAD }

Can an interface inherit from another interface?

1020

Explain about inheritance hierarchies?

968

What is difference between encapsulation and abstraction?

1002

Explain about encapsulation?

1027

Why do we use oops concepts? What is its advantage?

1084

State about java and its relation to object oriented programming?

1041

Explain the implementation phase with respect to oop?

973

What is composition? Explain the purpose of composition.

969

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

978

What is a default method? Why do we need default methods in java 8 interfaces?

1079

Explain what is single and multiple inheritance?

988

What is an interface?

1029

If a class inherits an interface, what are the 2 options available for that class?

949

Define a good interface?

992

What is the difference between an error and an exception?

1083

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