Scala Queue map() method with example

The map() method is utilized to build a new queue by applying a function to all elements of this queue.

Method Definition: def map[B](f: (A) => B): Queue[B]

Return Type: It returns a new queue containing all the elements after applying the given function.

Example #1:

// Scala program of map()
// method

// Import Queue
import scala.collection.mutable._

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating a queue
        val q1 = Queue(1, 3, 2, 7, 6, 5)

        // Print the queue
        println(q1)

        // Applying map method
        val result = q1.map(x => x*x)

        // Display output
        print("New queue after squaring all elements: " + result)

    }
}

Output:

Queue(1, 3, 2, 7, 6, 5)
New queue after squaring all elements: Queue(1, 9, 4, 49, 36, 25)

Example #2:

// Scala program of map()
// method

// Import Queue
import scala.collection.mutable._

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating a queue
        val q1 = Queue(1, 3, 2, 7, 6, 5)

        // Print the queue
        println(q1)

        // Applying map method
        val result = q1.map(x => x/2)

        // Display output
        print("New queue after dividing all elements by 2: " + result)

    }
}

Output:

Queue(1, 3, 2, 7, 6, 5)
New queue after dividing all elements by 2: Queue(0, 1, 1, 3, 3, 2)