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?

1018

Write a note on encapsulation?

994

Can encapsulation be called as a security device?

981

How can I be thrown polymorphically?

972

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

1045

What is super keyword?

966

Difference between class and an object?

971

What are base class, sub class and super class?

1052

Which oops concept is used as reuse mechanism?

3522

Write basic concepts of oops?

982

Do we require parameter for constructors?

1113

What are different types of arguments?

1087

What is sealed modifiers?

1010

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

1001

Explain colloboration

1055

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Un-Answered Questions { OOAD }

What is the significance of encapsulation?

992

Differentiate between an abstract class and an interface?

978

Why does java not support multiple inheritance?

1051

What are the different principle of OOPS?

991

Can we have a default method definition in the interface without specifying the keyword "default"?

963

How to make a class accessible as a web service?

951

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

1055

What is an abstraction?

917

What are the features of encapsulation ?

985

Explain about a class in oop?

964

Explain the abstract class modifier?

872

Difference between class and an object?

971

Why dynamic binding is used in object-oriented programming?

1081

How will you define abstract classes?

1014

Explain the different types of constructors

930

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