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Scala immutable TreeSet count() method

Last Updated : 19 Apr, 2020
In Scala immutable TreeSet class, the count() method is utilized to count the number of elements in the TreeSet that satisfies a given predicate.
Method Definition: def count(p: (A) => Boolean): Int Return Type: It returns the count the number of elements in the TreeSet that satisfies a given predicate.
Example #1:
Output: 
TreeSet(1, 2, 3, 4, 5)
Number of even element in the TreeSet: 2
Example #2:
Output: 
TreeSet(1, 2, 3, 4, 5)
Number of odd element in the TreeSet: 3
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