Scala Mutable SortedSet dropWhile()

In Scala mutable collections, dropWhile() method is utilized to drop the longest prefix of elements from the SortedSet that satisfies the stated condition.

Method Definition: def dropWhile(p: (A) => Boolean): SortedSet[A]

Return Type: It returns a TreeSet containing all the elements after dropping the longest prefix of elements from the SortedSet that satisfies the stated condition.

Example #1:

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

// Creating object
object GfG
{

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

        // Creating a list
        var s1 = SortedSet(1, 3, 5, 4, 2)

        // Print the SortedSet
        println(s1)

        // Applying dropWhile method
        var res = s1.dropWhile(x => {x % 2 != 0})

        // Displays output
        println(res)

    }
}

Output:

TreeSet(1, 2, 3, 4, 5)
TreeSet(2, 3, 4, 5)

Example #2:

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

// Creating object
object GfG
{

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

        // Creating a list
        var s1 = SortedSet(15, 17, 21)

        // Print the SortedSet
        println(s1)

        // Applying dropWhile method
        var res = s1.dropWhile(x => {x % 3 == 0})

        // Displays output
        println(res)

    }
}

Output:

TreeSet(15, 17, 21)
TreeSet(17, 21)