Core Java · interview question
In the context of collections, what is a key difference between a List and a Set in Java?
Multiple choiceEasychapter-4-curatedpremiumcore-javaequals-and-hashcode-in-collections
Answer and explanation
Correct answer
C. Lists allow duplicate elements, while Sets do not.
Why
A key difference between a List and a Set is that a List allows duplicate elements, whereas a Set does not. This makes a Set appropriate for storing unique elements, while a List is suitable for ordered collections that may contain duplicates.
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