Scala SortedSet dropWhile() method with example

Last Updated : 03 Nov, 2019

The 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.immutable.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.immutable.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)  
      
    }  
}  