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Design - Interview Questions and Answers for 'Overstock' - 3 question(s) found - Order By Newest

Very Frequently asked. Have been asked in HCL Technologies very frequently ( based on 3 feedback ). Among first few questions in many interviews.
  Q1. Differences between abstract class and interface ?Core Java
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Ans. Abstract classes can have both abstract methods ( method declarations ) as well as concrete methods ( inherited to the derived classes ) whereas Interfaces can only have abstract methods ( method declarations ).

A class can extend single abstract class whereas it can implement multiple interfaces.

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Very frequently asked.Usually among first few questions.
  Q2. What is MVC ? Design
Anonymous
Ans. MVC is a Design Pattern that facilititates loose coupling by segregating responsibilities in a Web application

1. Controller receives the requests and handles overall control of the request
2. Model holds majority of the Business logic, and
3. View comprise of the view objects and GUI component

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 Q3. What is the programming advantage of Immutability ?Design2018-03-31 08:33:05

 This question was recently asked at 'Overstock.com'.This question is still unanswered. Can you please provide an answer.


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   Like      Discuss      Correct / Improve     mmutable  immutabilit     Overstock.com


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 Does immutability facilitates better performance ?




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