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Interview Questions and Answers for 'HARMAN' - 3 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 Java2017-06-13 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 protection
4. Polymorphism for flexibility and interfacing

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   Like         Discuss         Correct / Improve     oops  oops features     Asked in 235 Companies      basic        frequent


Related Questions

 Can you give a real world example of Encapsulation and Abstraction ?
 Which of the following Java feature promotes access protection or Hiding ?

a. Inheritance
b. Encapsulation
c. Abstraction
d. Composition
 Define encapsulation in Java ?
 Give an example of how Object Oriented Programming Concepts can be implemented.
 Which of the OOP's features facilitate dependency injection ?
 Which of the OOP's feature - encapsulation or abstraction - is more important ?
 Which of the polymorphism type - static or runtime - is more important ?
 Which of the OOP's feature is most important ?


  Q2. Difference between Vector and ArrayList ?Core Java
Anonymous
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     Asked in 34 Companies      basic        frequent


Related Questions

 If you are given a choice to use either ArrayList and LinkedList, Which one would you use and Why ?
  What is the difference between ArrayList and LinkedList ?
  Difference between TreeMap and HashMap ?
  Difference between HashMap and Hashtable?
  Can you provide some implementation of a Dictionary having large number of words ?
 Collections.sort can only be performed on ..

a. Set
b. List
c. Map
d. Any Collection implementation
  What is the difference between List, Set and Map ?

or

What are the different Java Collections Interfaces ?
  What are strong, soft, weak and phantom references in Java ?
  What are the Disadvantages of using Collection Classes over Arrays ?


Very frequently asked.Usually among first few questions.
  Q3. 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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   Like         Discuss         Correct / Improve     j2ee   mvc   mvc design pattern   design pattern   struts   spring   web application   web frameworks   ebay     Asked in 60 Companies      basic        frequent

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