Java Interview Questions · interview question
Which statement about HashSet vs TreeSet is the strongest interview answer?
Multiple choiceEasyjava-interview-2026interviewjavastatement
Answer and explanation
Correct answer
C. HashSet gives fast uniqueness without order, while TreeSet maintains sorted order with comparison-based cost.
Why
HashSet gives fast uniqueness without order, while TreeSet maintains sorted order with comparison-based cost. This is the base concept interviewers commonly test first.
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