Core Java · interview question
Why might using a TreeSet be less efficient than a HashSet for frequent insertions and deletions?
Multiple choiceHardchapter-4-curatedpremiumcore-javacode-reading-with-collections
Answer and explanation
Correct answer
B. TreeSet has higher time complexity
Why
TreeSet sorts elements, which adds overhead to insertion and deletion operations, leading to higher time complexity (O(log n)) compared to HashSet's average constant time complexity for these operations.
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