Scala Queue +:() method with example
The +:() method is utilized to return a new queue with an element added at the front of the given queue.
Method Definition: def +:[B >: A](elem: B): Queue[B]
Return Type: It returns a new queue with an element added at the front of the given queue.
Example #1:
// Scala program of +:() // method // Import Queue import scala.collection.mutable. _ // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating a queue val q 1 = Queue( "for" , "Beginner" ) // Applying +:() method val result = q 1 .+ : ( "Beginner" ) // Display output print(result) } } |
Output:
Queue(Beginner, for, Beginner)
Example #2:
// Scala program of +:() // method // Import Queue import scala.collection.mutable. _ // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating a queue val q 1 = Queue( 2 , 3 , 4 , 5 , 6 ) // Applying +:() method val result = q 1 .+ : ( 1 ) // Display output print(result) } } |
Output:
Queue(1, 2, 3, 4, 5, 6)
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