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

OOAD Interview Questions

Questions Answers Views Company eMail

What is the difference between function overloading and over riding?

BirlaSoft,

987

explain the difference between operator overloading and function overloading.

TCS,

947

What are abstract functions? Why are they used?

955

Describe the Diamond problem. Where does this problem occur?

Tech Mahindra,

889

What is an interface?

979

What is the difference between class and interface?

1070

Can an interface implement or extend another interface?

950

What is the benefit of Composition over Inheritance?

942

What are the rules to define a functional interface?

973

Is is possible to define our own functional interface?

1000

What is a functional interface? What is sam interface?

1019

Is it possible to provide method implementations in java interfaces? If possible, how do we provide them?

900

Differences between functional programming and object-oriented programming?

999

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

1130

What is multiple inheritance? How java 8 supports multiple inheritance?

1028

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Un-Answered Questions { OOAD }

Why is message passing between the objects important?

943

What are sealed modifiers?

1017

Write a note on encapsulation?

964

Write a note about inheritance?

893

What are the various types of constructors?

975

Do we require a parameter for constructors?

958

What is sealed modifiers?

971

What is single and multiple inheritance?

957

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

1004

Explain about multiple inheritance?

1009

Why are virtual users created?

996

What is diamond inheritance problem? How java 8 solves this problem?

1013

What are the four important foundation concepts of OOP ?

897

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

1020

What is the super keyword?

993

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