Core java - Interview Questions and Answers for 'Aurionpro solutions' | Search Interview Question - javasearch.buggybread.com
Javasearch.buggybread.com

Search Interview Questions


 More than 3000 questions in repository.
 There are more than 900 unanswered questions.
Click here and help us by providing the answer.
 Have a video suggestion.
Click Correct / Improve and please let us know.
Label / Company      Label / Company / Text

   



Core java - Interview Questions and Answers for 'Aurionpro solutions' - 2 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

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     oops  oops features     Asked in 260 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 ?


Frequently asked in all types of companies especially Indian Services companies. Frequently asked in CTS (Based on 2 feedback)
  Q2. What is the use of hashcode in Java ?Core Java
Ans. Hashcode is used for bucketing in Hash implementations like HashMap, HashTable, HashSet etc. The value received from hashcode() is used as bucket number for storing elements. This bucket number is the address of the element inside the set/map. when you do contains() then it will take the hashcode of the element, then look for the bucket where hashcode points to and if more than 1 element is found in the same bucket (multiple objects can have the same hashcode) then it uses the equals() method to evaluate if object are equal, and then decide if contain() is true or false, or decide if element could be added in the set or not.

 Help us improve. Please let us know the company, where you were asked this question :   

   Like         Discuss         Correct / Improve     java   collections   hashcode   advanced  hashtable     Asked in 33 Companies      intermediate        frequent

Try 1 Question(s) Test


Related Questions

  Which String class does not override the equals() and hashCode() methods, inheriting them directly from class Object?
 Write a class and override the equals and hashcode method ?
 How many threads can access a concurrent hashmap when the hashcode is overridden and always returns a zero.



Help us and Others Improve. Please let us know the questions asked in any of your previous interview.

Any input from you will be highly appreciated and It will unlock the application for 10 more requests.

Company Name:
Questions Asked: