How to remove duplicates from List?(a) HashSet listToSet = new HashSet(duplicateList);(b) HashSet listToSet = duplicateList.toSet();(c) HashSet listToSet = Collections.convertToSet(duplicateList);(d) HashSet listToSet = duplicateList.getSet();The question was asked in an international level competition.This is a very interesting question from Data Structures-List in portion java.util – The Collections Framework of Java

How to remove duplicates from List?(a) HashSet listToSet = new HashSet

1.	How to remove duplicates from List?(a) HashSet listToSet = new HashSet(duplicateList);(b) HashSet listToSet = duplicateList.toSet();(c) HashSet listToSet = Collections.convertToSet(duplicateList);(d) HashSet listToSet = duplicateList.getSet();The question was asked in an international level competition.This is a very interesting question from Data Structures-List in portion java.util – The Collections Framework of Java
Answer» Correct OPTION is (a) HASHSET listToSet = NEW HashSet(duplicateList); Explanation: Duplicate elements are ALLOWED in List. Set contains UNIQUE objects.

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