Collections · interview question
You need a collection for an in-memory product catalog where order matters and items must be unique. Which collection is the best choice?
Multiple choiceHardchapter-4-curatedpremiumcollectionschoosing-the-right-collection
Answer and explanation
Correct answer
A. LinkedHashSet
Why
LinkedHashSet maintains insertion order and ensures that all elements are unique, which makes it suitable for an in-memory product catalog where both these properties are required.
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