Question
Which statement is true for the class java.util.HashSet?
Answer: Option C
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Option C is correct. HashSet implements the Set interface and the Set interface specifies
collection that contains no duplicate elements.
Option A is wrong. HashSet makes no guarantees as to the iteration order of the set; in
particular, it does not guarantee that the order will remain constant over time.
Option B is wrong. The set can be modified.
Option D is wrong. This is a Set and not a Map.
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