What is the unique feature of LinkedHashSet?

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What is the unique feature of LinkedHashSet?

1. The elements in the collection are linked to each other
2. It provides a way to store key values with uniqueness
3. It maintains the insertion order and guarantees uniqueness
4. It is not a valid class
5. None of these

Correct Option: C

Set is a collection of unique elements.HashSet has the behavior of Set and stores key value pairs. The LinkedHashSet stores the key value pairs in the order of insertion.