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Which practice avoids a common mistake with Trie and Prefix Tree?

Multiple choiceMediumjava-interview-2026interviewjavapitfall

Ignore the Trie and Prefix Tree issue and rely on team discipline instead of APIs or contracts.Silence the Trie and Prefix Tree problem by using raw types, broad catches, or shared mutable state.Prefer the version of Trie and Prefix Tree that makes behavior less predictable as long as the code compiles.Do not choose a trie casually for small datasets when its node overhead outweighs the benefit of prefix sharing.

Answer and explanation

Correct answer

D. Do not choose a trie casually for small datasets when its node overhead outweighs the benefit of prefix sharing.

Why

Do not choose a trie casually for small datasets when its node overhead outweighs the benefit of prefix sharing. 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 Trie and Prefix Tree?

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