Home [Data Sturcture] HashSet vs HashMap vs LinkedHashMap
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[Data Sturcture] HashSet vs HashMap vs LinkedHashMap

Yuha on Oct 25, 20212021-10-25T18:00:00+09:00
Updated Nov 14, 20222022-11-14T18:00:00+09:00 1 min read

HashSet πŸ†š HashMap

πŸ“Œ Let’s compare

Β HashSetHashMap
ImplementsSet InterfaceMap Interface
DataObjects<Key,Value>
Duplicate elementsNoKey : No
Values : Yes
Null elementsOnly oneKey : Only one
Values: multiple
Insertion methodadd(Object)put(Key, Value)
Advantage- There are no duplicate elements in HashSet- It’s faster than HashSet

The source : https://javaconceptoftheday.com/differences-between-hashmap-vs-hashset-in-java/

πŸ“Œ Methods in Java

HashSet

Screen Shot 2021-10-25 at 5 44 07 PM

The source : https://docs.oracle.com/javase/8/docs/api/java/util/HashSet.html

HashMap

Screen Shot 2021-10-25 at 5 46 24 PM

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The source : https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html

HashMap πŸ†š LinkedHashMap

πŸ“Œ Let’s compare

  • LinkedHashMap ; the keys are ordered when put
  • HashMap : the keys are not ordered when put

The source : https://fruitdev.tistory.com/141

Development, DataStructure
datastructure java eng
This post is licensed under CC BY 4.0 by the author.
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