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Core Java - Interview Questions and Answers for 'Hash collections' - 3 question(s) found - Order By Newest

 Q1. Name few Hash collections classes and interfaces ?
Ans. http://www.buggybread.com/2015/01/java-hash-collections-classes-and.html

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   Like         Discuss         Correct / Improve     java   collections   hash collections


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 Q2. What is collision in hash collections ?Core Java
Ans. Collision is the situation when two different elements have the same Hash Code.

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   Like         Discuss         Correct / Improve     java   collections   collision   hashcode  hash code   hash collections   ebay     Asked in 1 Companies      intermediate        frequent


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 Q3. Do you feel that its useless to define hashCode method for a class ?Core Java
Ans. Yes its useless if we are not going to use its objects within Hash collection, For example - HashSet , HashMap. HashCode is used internally by these collections for Search.

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   Like         Discuss         Correct / Improve     hashcode  hash collections  search


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