Which of the following Java collections classes does not allow duplicate elements in the collection?
a) ArrayList
b) Vector
c) LinkedList
d) TreeSet
Created by Nancy K.A.N.
@12:05 19-Jun-2025
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I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
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