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Interview Questions and Answers for 'Birlasoft' - 6 question(s) found - Order By Newest

Q1. Explain OOPs

or

Explain OOPs Principles

or

Explain OOPs Concepts

or

Explain OOPs features

or

Tell me something about OOPs

Core Java

^{2017-06-13 08:25:45}

Ans. OOPs or Object Oriented Programming is a Programming model which is organized around Objects instead of processes. Instead of a process calling series of processes, this model stresses on communication between objects. Objects that all self sustained, provide security by encapsulating it's members and providing abstracted interfaces over the functions it performs. OOP's facilitate the following features

1. Inheritance for Code Reuse
2. Abstraction for modularity, maintenance and agility
3. Encapsulation for security and protected
4. Polymorphism for flexibility and interfacing

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Q2. Difference between Vector and ArrayList ?

Core Java

^Anonymous

Ans. Vectors are synchronized whereas Array lists are not.

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Very frequently asked Hibernate interview question. Frequently asked in TCS ( based on 2 feedback )

Q3. What are different types of associations in Hibernate ?

Hibernate

^{Admin
info@buggybread.com}

Ans. There are 4 types of associations in Hibernate

One to One
One to Many
Many to One
Many to Many

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Very frequently asked. Usually followed by questions related to private constructor and synchronized access. Frequently asked in JPMorgan and TCS (Based on 2 feedback)

Q4. Explain Singleton Design Pattern ?

Design

^{Admin
info@buggybread.com}

Ans. http://www.buggybread.com/2014/03/java-design-pattern-singleton-interview.html

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Q5. Difference between Singleton and Factory Design Pattern ?

Design

^{2017-02-02 11:24:01}

Ans. Both are creational design patterns but singleton facilitates in creation and reuse of single object whereas Factory deals with creation of multiple objects.

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Q6. What is a session bean ?

Java EE

^{2017-07-05 11:58:31}

^{This question was recently asked at 'BirlaSoft'.This question is still unanswered. Can you please provide an answer.}

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