Scala immutable TreeSet +() method
In Scala immutable TreeSet class
, the +() method is utilised 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 program of +() // method // Import TreeSet import scala.collection.immutable. _ // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating TreeSets val t 1 = TreeSet( "a" , "e" , "i" , "o" ) // Print the TreeSets println(t 1 ) // Applying +() method val result = t 1 + ( "u" ) // Display output print( "After adding an element: " + result) } } |
Output:
TreeSet(a, e, i, o) After adding an element: TreeSet(a, e, i, o, u)
Example #2:
// Scala program of +() // method // Import TreeSet import scala.collection.immutable. _ // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating TreeSets val t 1 = TreeSet( 2 , 1 , 5 , 4 , 1 ) // Print the TreeSets println(t 1 ) // Applying +() method val result = t 1 + ( 3 ) // Display output print( "After adding an element: " + result) } } |
Output:
TreeSet(1, 2, 4, 5) After adding an element: TreeSet(1, 2, 3, 4, 5)