Java Interview Questions · interview question

What deeper point about Comparable vs Comparator should a senior Java developer mention?

Multiple choiceHardjava-interview-2026interviewjavaadvanced

At senior level, the JVM removes the tradeoffs around Comparable vs Comparator, so design choices barely matter.Good comparators are transitive, predictable, and explicit about null handling because ordering bugs spread quickly through collection behavior.At senior level, any approach to Comparable vs Comparator is equally correct if it compiles and passes a small test.At senior level, the right answer is that Comparable vs Comparator exists mostly for historical syntax reasons.

Answer and explanation

Correct answer

B. Good comparators are transitive, predictable, and explicit about null handling because ordering bugs spread quickly through collection behavior.

Why

Good comparators are transitive, predictable, and explicit about null handling because ordering bugs spread quickly through collection behavior. This is the kind of tradeoff-aware answer senior interviews usually expect.

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What deeper point about Comparable vs Comparator should a senior Java developer mention?

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