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  1. How to remove duplicates from List?
    1. HashSet listToSet = duplicateList.toSet();
    2. HashSet listToSet = duplicateList.getSet();
    3. HashSet listToSet = new HashSet(duplicateList);
    4. HashSet listToSet = Collections.convertToSet(duplicateList);
    5. None of these
Correct Option: C

Duplicate elements are allowed in List. Set contains unique objects.


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