Scala TreeSet contains() method with example

In Scala 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:

// Scala program of contains()
// method

// Import TreeSet
import scala.collection.mutable._

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating TreeSet
        val t1 = TreeSet(41, 12, 23, 43, 1, 72)

        // Print the TreeSet
        println(t1)

        // Applying contains() method
        val result = t1.contains(10)

        // Display output
        print("TreeSet contains '10': " + result)

    }
}

Output:

TreeSet(1, 12, 23, 41, 43, 72)
TreeSet contains '10': false

Example #2:

// Scala program of contains()
// method

// Import TreeSet
import scala.collection.mutable._

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating TreeSet
        val t1 = TreeSet("g", "e", "e", "k", "s")

        // Print the TreeSet
        println(t1)

        // Applying contains() method
        val result = t1.contains("k")

        // Display output
        print("TreeSet contains 'k': " + result)

    }
}

Output:

TreeSet(e, g, k, s)
TreeSet contains 'k': true