HashSet vs LinkedHashSet || Java interview question 2021

HashSet:
The underlying data structure is Hashtable.
HashSet doesn’t maintain insertion order.
Introduced in 1.2 version.
Performance is good in comparison to LinkedHashSet.

LinkedHashSet:
The underlying data structure is combination of Hashtable and LinkedList.
Insertion order is preserved.
Introduced in 1.4 version.
The performance of LinkedHashSet is between HashSet and TreeSet.
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