Scala Queue size() method with example

The size() method is utilized to return the number of elements present in the queue.

Method Definition: def size: Int

Return Type: It returns the number of elements present in the queue.

Example #1:

// Scala program of size()
// method

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

// Creating object
object GfG
{

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

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

        // Print the queue
        println(q1)

        // Applying size method
        val result = q1.size

        // Display output
        print("Number of elements in the queue: "  + result)

    }
}

Output:

Queue(5, 2, 3, 7, 1)
Number of elements in the queue: 5

Example #2:

// Scala program of size()
// method

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

// Creating object
object GfG
{

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

        // Creating a queue
        val q1 = Queue("a", "e", "i", "o", "u")

        // Print the queue
        println(q1)

        // Applying size method
        val result = q1.size

        // Display output
        print("Number of elements in the queue: "  + result)

    }
}

Output:

Queue(a, e, i, o, u)
Number of elements in the queue: 5