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

OOAD Interview Questions

Questions Answers Views Company eMail

If a method definition has been specified in class , its base class , and the interface which the class is implementing, which definition will be picked if we try to access it using interface reference and class object?

992

What is difference between encapsulation and abstraction?

1002

Difference between encapsulation and data hiding ?

900

Difference between abstraction and implementation hiding ?

1094

What are the features of encapsulation ?

989

Difference between composition and inheritance ?

970

Are constructors inherited? Can a subclass call the parent's class constructor? When?

995

Can we reduce the visibility of the inherited or overridden method ?

1040

Which of the following is tightly bound ? Inheritance or composition ?

1 1653

Does a class inherit the constructor of its super class?

949

How many methods do u implement if implement the serializable interface?

963

What does the “abstract” keyword mean in front of a method? A class?

977

How many methods are there in the externalizable interface?

1017

What interface must an object implement before it can be written to a stream as an object?

1082

What does it mean that a method or class is abstract?

976

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Un-Answered Questions { OOAD }

What are the features that are provided to make a program modular?

1088

Explain the abstract class modifier?

886

Can a class implement two interfaces having default method with same name and signature?

1018

Explain the term constructor

1047

What is the main difference between overloading and overriding?

1096

Define modularity?

1078

What is a pure virtual function?

1613

What are the interfaces you used in beans?

1023

Why use oops?

919

Differentiate between data abstraction and encapsulation.

980

What are a base class, subclass, and superclass?

1000

What is the difference between a class and a structure?

990

What is an interface?

1029

What is a ternary operator?

956

What is meant by “abstract interface”?

1024

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