Java Interview Questions · interview question
In Java, which comparison about HashSet Membership and Deduplication is accurate?
Multiple choiceEasyjava-interview-2026interviewjavacomparison
Answer and explanation
Correct answer
B. It is better than a List for repeated contains checks when order and duplicates are not important.
Why
It is better than a List for repeated contains checks when order and duplicates are not important. This is the comparison that usually separates memorization from understanding.
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