Scala Queue clear() method with example

The clear() method is utilized to delete all the elements of the queue.

Method Definition: def clear(): Unit

Return Type: It returns an empty queue.

Example #1:

// Scala program of clear()
// 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("Before clear() method: " + q1)

        // Applying clear() method
        q1.clear()

        // Display output
        print("After clear() method: " + q1)

    }
}

Output:

Before clear() method: Queue(10, 11, 12, 13, 14)
After clear() method: Queue()

Example #2:

// Scala program of clear()
// method

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

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a queue
        val q1 = Queue("geeks", "for", "geeks")


        // Print the queue
        println("Before clear() method: " + q1)

        // Applying clear() method
        q1.clear()

        // Display output
        print("After clear() method: " + q1)

    }
}

Output:

Before clear() method: Queue(geeks, for, geeks)
After clear() method: Queue()