Scala Queue contains() method with example

The contains() method is utilized to test if an element is present in the queue or not.

Method Definition: def contains[A1 >: A](elem: A1): Boolean

Return Type: It returns true if the element is present in the queue, else it returns false.

Example #1:

// Scala program of contains()
// method

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

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a queue
        val q1 = Queue(10, 11, 12, 13, 14)

        // Print the queue
        println(q1)

        // Applying contains() method
        val result = q1.contains(12)

        // Display output
        print("Queue contains 12: " + result)

    }
}

Output:

Queue(10, 11, 12, 13, 14)
Queue contains 12: true

Example #2:

// Scala program of contains()
// method

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

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a queue
        val q1 = Queue(10, 11, 12, 13, 14)

        // Print the queue
        println(q1)

        // Applying contains() method
        val result = q1.contains(20)

        // Display output
        print("Queue contains 20: " + result)

    }
}

Output:

Queue(10, 11, 12, 13, 14)
Queue contains 20: false