Scala TreeSet dropWhile() method with example
In Scala 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.mutable._ // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating TreeSet val t1 = TreeSet(2, 4, 6, 7, 8, 9) // Print the TreeSet println(t1) // Applying dropWhile() method val result = t1.dropWhile(x => {x % 2 == 0}) // Displays output println("TreeSet after using dropWhile() method: " + result) } } |
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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.mutable._ // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating TreeSet val t1 = TreeSet(3, 5, 6, 7, 8, 9) // Print the TreeSet println(t1) // Applying dropWhile() method val result = t1.dropWhile(x => {x % 2 != 0}) // Displays output println("TreeSet after using dropWhile() method: " + result) } } |
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Output:
TreeSet(3, 5, 6, 7, 8, 9) TreeSet after using dropWhile() method: TreeSet(6, 7, 8, 9)
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