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Which practice avoids a common mistake with TreeSet and NavigableSet?

Multiple choiceMediumjava-interview-2026interviewjavapitfall

Prefer the version of TreeSet and NavigableSet that makes behavior less predictable as long as the code compiles.Do not ignore comparator consistency, because broken ordering rules can make membership behavior look inconsistent.Ignore the TreeSet and NavigableSet issue and rely on team discipline instead of APIs or contracts.Silence the TreeSet and NavigableSet problem by using raw types, broad catches, or shared mutable state.

Answer and explanation

Correct answer

B. Do not ignore comparator consistency, because broken ordering rules can make membership behavior look inconsistent.

Why

Do not ignore comparator consistency, because broken ordering rules can make membership behavior look inconsistent. This is a common failure mode in real Java code and a frequent interview follow-up.

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Which practice avoids a common mistake with TreeSet and NavigableSet?

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