Scala Queue init() method with example

The init() method is utilized to return a new queue that consists of all the elements except the last one.

Method Definition: def init: Queue[A]

Return Type: It returns a new queue that consists of all the elements except the last one.

Example #1:

// Scala program of init()
// method

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

// Creating object
object GfG
{

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

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

        // Print the queue
        println(q1)

        // Applying init method
        val result = q1.init

        // Display output
        print("Elements of the queue except the last one: " + result)

    }
}

Output:

Queue(1, 3, 2, 7, 6, 5)
Elements of the queue except the last one: Queue(1, 3, 2, 7, 6)

Example #2:

// Scala program of init()
// method

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

// Creating object
object GfG
{

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

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

        // Print the queue
        println(q1)

        // Applying init method
        val result = q1.init

        // Display output
        print("Elements of the queue except the last one: " + result)

    }
}

Output:

Queue(5, 3, 2, 7, 6, 1)
Elements of the queue except the last one: Queue(5, 3, 2, 7, 6)