Interview Questions and Answers for 'Birlasoft' | Search Interview Question

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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

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 protection
4. Polymorphism for flexibility and interfacing

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_{Like Discuss Correct / Improve oops oops features Asked in 260 Companies basic frequent}

Q2. Difference between Vector and ArrayList ?

Core Java

Ans. Vectors are synchronized whereas Array lists are not.

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_{Like Discuss Correct / Improve java basic interview question vector arraylist collections synchronization vector vs arraylist Asked in 35 Companies basic frequent}

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

Q3. What are different types of associations in Hibernate ?

Hibernate

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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_{Like Discuss Correct / Improve hibernate associations Asked in 11 Companies frequent}

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

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

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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_{Like Discuss Correct / Improve Design pattern singleton factory singleton vs factory Asked in 4 Companies}

Q6. What is a session bean ?

Java EE

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

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_{Like Discuss Correct / Improve session bean java bean Asked in 1 Companies}

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