Collections · interview question
A shopping cart must preserve item order and allow the same product to appear more than once. Which collection contract fits best?
Multiple choiceEasychapter-4-curatedpremiumcollectionschoosing-the-right-collection
Answer and explanation
Correct answer
C. A List, usually implemented with ArrayList
Why
A cart line collection usually needs ordering plus duplicates. That points to List semantics first, and ArrayList is the common default implementation when indexed reads and simple appends dominate.
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