Core Java · interview question
Given a list of product names, which collection would help you efficiently find out how many times each product appears?
Multiple choiceMediumchapter-4-curatedpremiumcore-javacode-reading-with-collections
Answer and explanation
Correct answer
A. HashMap
Why
HashMap can be used to map product names (keys) to their counts (values), allowing efficient tracking of the frequency of each product.
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