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Explain Which of the below is not an implementation of List interface?

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Which of the below is not an implementation of List interface? (a) RoleUnresolvedList (b) Stack (c) AttibuteList (d) SessionList I have been asked this question during an interview. This intriguing question originated from Data Structures-List topic in portion java.util – The Collections Framework of Java Select the correct answer from above options

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The correct answer is (d) SessionList To explain I would say: SessionList is not an implementation of List interface. The others are concrete classes of List.

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