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how hashset works internally in java?


HashSet extends AbstractSet and implements the Set interface. It not maintains any order for its elements. It uses hash table for storage.

HashSet uses HashMap internally to store its elements. When we create a HashSet, internally a HashMap is created. The elements inserted in HashSet are actually inserted as the keys in HashMap.

Kindly click here to look at internal working of HashMap to see how hashset works internally.

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