The Java.util.TreeSet.size() method is used to get the size of the Tree set or the number of elements present in the Tree set.
Parameters: The method does not take any parameter.
Return Value: The method returns the size or the number of elements present in the Set.
Below program illustrates the use of Java.util.TreeSet.size() method:
TreeSet: [4, Geeks, To, TreeSet, Welcome] The size of the set is: 5
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