Collections · interview question
Why do teams use a HashSet over a List when you need to store a collection of product names in production code?
Multiple choiceEasychapter-4-curatedpremiumcollectionscollection-performance-basics
Answer and explanation
Correct answer
B. Ensures uniqueness of elements
Why
A HashSet does not allow duplicate elements and offers constant time performance for basic operations like add, remove, and contains, making it ideal for ensuring uniqueness.
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