Scala Mutable SortedSet forall() method

In Scala mutable collections, SortedSet forall() method is utilized to check if the given predicate satisfies all the elements of the SortedSet or not.

Method Definition: def forall(p: (A) => Boolean): Boolean

Return Type: It returns true if the stated predicate holds true for all the elements of the SortedSet else it returns false.

Example #1:

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

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a SortedSet
        val s1 = SortedSet(13, 7, 12, 9, 21)

        // Applying forall method
        val result = s1.forall(y => {y % 3 == 0})

        // Displays output
        println(result)

    }
}

Output:

false

Example #2:

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

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a SortedSet
        val s1 = SortedSet(15, 12, 21, 30)

        // Applying forall method
        val result = s1.forall(y => {y % 3 == 0})

        // Displays output
        println(result)

    }
}

Output:

true