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Scala immutable TreeSet contains() method

Last Updated : 19 Apr, 2020
In Scala immutable TreeSet class, the contains() method is utilized to check if an element is present in the TreeSet of not.
Method Definition: def contains(elem: A): Boolean Return Type: It returns true if the element is present in the TreeSet or else it returns false.
Example #1:
Output: 
TreeSet(1, 12, 23, 41, 43, 72)
TreeSet contains '10': false
Example #2:
Output: 
TreeSet(e, g, k, s)
TreeSet contains 'k': true
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