Scala immutable TreeSet count() method

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:

// Scala program of count()
// method

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

// Creating object
object GfG
{

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

        // Creating TreeSet
        val t1 = TreeSet(2, 1, 3, 4, 5)

        // Print the TreeSet
        println(t1)

        // Applying count() method
        val result = t1.count(x => {x % 2 == 0})

        // Display output
        print("Number of even element in the TreeSet: " + result)

    }
}

Output:

TreeSet(1, 2, 3, 4, 5)
Number of even element in the TreeSet: 2

Example #2:

// Scala program of count()
// method

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

// Creating object
object GfG
{

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

        // Creating TreeSet
        val t1 = TreeSet(2, 1, 3, 4, 5)

        // Print the TreeSet
        println(t1)

        // Applying count() method
        val result = t1.count(x => {x % 2 != 0})

        // Display output
        print("Number of odd element in the TreeSet: " + result)

    }
}

Output:

TreeSet(1, 2, 3, 4, 5)
Number of odd element in the TreeSet: 3