Explanation is Needed. Please help me

Question

we need to store elements in a collection that guarantees that no duplicates are stored and all elements can be accessed in natural order. Which interface provides that capability?

Answer 1

YOU NEED TO USE LinkedHashSet

The HashSet class does not automatically retain the order of the elements as they're added. To order the elements, use a LinkedHashSet, which maintains a linked list of the set's elements in the order in which they were inserted.

Answer 2

Set store only unique elements, I am not sure about natural order.