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Explain What is the difference between TreeSet and SortedSet?

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What is the difference between TreeSet and SortedSet? (a) TreeSet is more efficient than SortedSet (b) SortedSet is more efficient than TreeSet (c) TreeSet is an interface; SortedSet is a concrete class (d) SortedSet is an interface; TreeSet is a concrete class The question was posed to me in semester exam. The question is from Data Structures-Set in section java.util – The Collections Framework of Java Select the correct answer from above options

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The correct answer is (d) SortedSet is an interface; TreeSet is a concrete class Explanation: SortedSet is an interface. It maintains an ordered set of elements. TreeSet is an implementation of SortedSet.

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