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Core java - Interview Questions and Answers for 'Hybris' - 2 question(s) found - Order By Newest

Very Frequently asked to fresh graduates and less experienced. Favorite question in Walk in drives. Frequently asked in Indian Services companies.
  Q1. Difference between Overloading and Overriding ?Core Java
Ans. Overloading - Similar Signature but different definition , like function overloading.

Overriding - Overriding the Definition of base class in the derived class.

  Sample Code for overloading

  Sample Code for overriding

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   Like         Discuss         Correct / Improve     java   oops   overloading   overriding   oops concepts   basic interview question   overloading vs overriding     Asked in 86 Companies      basic        frequent

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Related Questions

  What are the difference between composition and inheritance in Java?
 Explain OOPs

or

Explain OOPs Principles

or

Explain OOPs Concepts

or

Explain OOPs features

or

Tell me something about OOPs
  What is the difference between Encapsulation and Abstraction?
  What are points to consider in terms of access modifier when we are overriding any method?
 What is Polymorphism in Java ?
 Can you give a real world example of Encapsulation and Abstraction ?
  Why every object constructor automatically call super() in Object before its own constructors?
  How compiler handles the exceptions in overriding ?
  Difference between Composition and Inheritance ?


Very Frequently asked. Usually asked along with String Class related questions.
  Q2. What is an immutable class ?Core Java
Ans. Class using which only immutable (objects that cannot be changed after initialization) objects can be created.

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   Like         Discuss         Correct / Improve     java   oops   immutable  immutability   immutable  immutability class   string class   basic interview question     Asked in 18 Companies      Basic        frequent

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Related Questions

  Why is String immutable in Java ?
  Why Char array is preferred over String for storing password?
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 How is string object immutable if we can concat a string to it ?
  How to implement an immutable class ?
  What is an Immutable Object ?
  Does Declaring an object "final" makes it immutable ?
 Is String final in Java ?
  What are stateless objects ? How are they different from immutable objects ? Which of these two is thread safe ?



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