Java Interview Questions · interview question
What deeper point about HashSet vs TreeSet should a senior Java developer mention?
Multiple choiceHardjava-interview-2026interviewjavaadvanced
Answer and explanation
Correct answer
B. A comparator that is inconsistent with equals can make sorted-set behavior surprising during lookups and deduplication.
Why
A comparator that is inconsistent with equals can make sorted-set behavior surprising during lookups and deduplication. This is the kind of tradeoff-aware answer senior interviews usually expect.
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