Collections · interview question
What will be the output when attempting to add a duplicate element to a HashSet?
Multiple choiceMediumchapter-4-curatedpremiumcollectionsset-interface-and-hashset
Answer and explanation
Correct answer
B. The duplicate element will be ignored.
Why
HashSet does not allow duplicate elements. When an attempt is made to add a duplicate, it is simply ignored, and the set remains unchanged.
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