Scala TreeSet sum() method with example Last Updated : 11 Nov, 2019 Comments Improve Suggest changes Like Article Like Report The sum() method is utilized to return the sum of all the elements of the TreeSet. Method Definition: def sum: A Return Type: It returns the sum of all the elements of the TreeSet. Example #1: Scala // Scala program of sum() // method // Import TreeSet import scala.collection.mutable._ // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating TreeSet val t1 = TreeSet(3, 1, 5, 2, 4) // Print the TreeSet println(t1) // Applying sum method val result = t1.sum // Displays output print("Sum of all the elements of the TreeSet: " + result) } } Output: TreeSet(1, 2, 3, 4, 5) Sum of all the elements of the TreeSet: 15 Example #2: Scala // Scala program of sum() // method // Import TreeSet import scala.collection.mutable._ // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating TreeSet val t1 = TreeSet(3, 1, 5, 7, 9) // Print the TreeSet println(t1) // Applying sum method val result = t1.sum // Displays output print("Sum of all the elements of the TreeSet: " + result) } } Output: TreeSet(1, 3, 5, 7, 9) Sum of all the elements of the TreeSet: 25 Comment More infoAdvertise with us Next Article Scala TreeSet sum() method with example R rupesh_rao Follow Improve Article Tags : Scala Scala Scala-Method scala-collection Similar Reads Scala TreeSet +() method with example In Scala TreeSet class, the +() method is utilized to add an element to the TreeSet unless it is already present. Method Definition: def +(elem: A): TreeSet[A] Return Type: It returns a new TreeSet with an additional element unless the element is already present. Example #1: Scala // Scala program o 2 min read Scala TreeSet ++() method with example In Scala TreeSet class, the ++() method is utilized to add elements of one TreeSet to another TreeSet. Method Definition: def ++(that: IterableOnce[A]): TreeSet[A] Return Type: It returns a new TreeSet which contains all the element from both the given TreeSets. Example #1: Scala // Scala program of 2 min read Scala TreeSet size() method with example The size() method is utilized to return the number of elements present in the TrreSet. Method Definition: def size: Int Return Type: It returns the number of elements present in the TreeSet. Example #1: Scala // Scala program of size() // method // Import TreeSet import scala.collection.mutable._ // 1 min read Scala SortedSet +() method with example The +() method is utilized to create a new SortedSet with an additional element unless the element is already present. Method Definition: def +(elem: A): SortedSet[A] Return Type: It returns a new SortedSet with an additional element unless the element is already present. Example #1: Scala // Scala 1 min read Scala SortedSet ++() method with example The ++() method is utilized to add elements of one SortedSet to another SortedSet. Method Definition: def ++(elems: A): SortedSet[A] Return Type: It returns a new TreeSet containing elements of both the SortedSets. Example #1: Scala // Scala program of ++() method import scala.collection.immutable.S 1 min read Like