In Scala immutable TreeSet class
, the dropWhile() method is utilized to drop the longest prefix from the front which satisfies a given predicate in a TreeSet.
Method Definition: def dropWhile(p: (A) => Boolean): TreeSet[A]
Return Type: It returns a new TreeSet that consists of elements after dropping the longest prefix satisfying the given predicate.
Example #1:
// Scala program of dropWhile() // method // Import TreeSet import scala.collection.immutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating TreeSet
val t 1 = TreeSet( 2 , 4 , 6 , 7 , 8 , 9 )
// Print the TreeSet
println(t 1 )
// Applying dropWhile() method
val result = t 1 .dropWhile(x => {x % 2 == 0 })
// Displays output
println( "TreeSet after using dropWhile() method: " + result)
}
} |
Output:
TreeSet(2, 4, 6, 7, 8, 9) TreeSet after using dropWhile() method: TreeSet(7, 8, 9)
Example #2:
// Scala program of dropWhile() // method // Import TreeSet import scala.collection.immutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating TreeSet
val t 1 = TreeSet( 3 , 5 , 6 , 7 , 8 , 9 )
// Print the TreeSet
println(t 1 )
// Applying dropWhile() method
val result = t 1 .dropWhile(x => {x % 2 ! = 0 })
// Displays output
println( "TreeSet after using dropWhile() method: " + result)
}
} |
Output:
TreeSet(3, 5, 6, 7, 8, 9) TreeSet after using dropWhile() method: TreeSet(6, 7, 8, 9)
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