Scala Mutable SortedSet +() method

In Scala mutable collections, +() method is utilized to create a new SortedSet with an additional element unless the element is already present.

Method Definition: def +(elem: A): SortedSet[A]

Return Type: It returns a new SortedSet with an additional element unless the element is already present.

Example #1:

// Scala program of +()
// method
import scala.collection.mutable.SortedSet

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a SortedSet
        val s1 = SortedSet(4, 8, 9, 1, 7)

        // Applying +() method
        val result = s1.+(5)

        // Display output
        print(result)
    }
}

Output:

TreeSet(1, 4, 5, 7, 8, 9)

Example #2:

// Scala program of +()
// method
import scala.collection.mutable.SortedSet

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a SortedSet
        val s1 = SortedSet(41, 12, 23, 43, 1, 72)

        // Applying +() method
        val result = s1.+(100)

        // Display output
        print(result)
    }
}

Output:

TreeSet(1, 12, 23, 41, 43, 72, 100)