Scala immutable TreeSet size() method

In Scala immutable TreeSet class the size() method is utilised to return the number of elements present in the TrreSet.

Method Definition: def size: Int

Return Type: It returns the number of elements present in the TreeSet.

Example #1:

// Scala program of size()
// method

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

// Creating object
object GfG
{

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

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

        // Print the TreeSet
        println(t1)

        // Applying size method
        val result = t1.size

        // Displays output
        print("Size of the TreeSet: " + result)

    }
}

Output:

TreeSet(1, 2, 3, 4, 5)
Size of the TreeSet: 5

Example #2:

// Scala program of size()
// method

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

// Creating object
object GfG
{

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

        // Creating TreeSet
        val t1 = TreeSet(3, 1, 5, 2, 4, 10, 6, 9, 7, 8)

        // Print the TreeSet
        println(t1)

        // Applying size method
        val result = t1.size

        // Displays output
        print("Size of the TreeSet: " + result)

    }
}

Output:

TreeSet(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
Size of the TreeSet: 10