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Scala program to remove all elements from the queue

Here, we are going to learn how to remove all elements from the queue in Scala programming language?
Submitted by Nidhi, on June 17, 2021 [Last updated : March 12, 2023]

Scala - Removing Queue's All Elements

In this program, we will create a queue using the Queue collection class. Then we will remove all elements of the queue using the clear() method.

The Queue is a linear data structure, It follows the First In First Out (FIFO) property. We can insert and remove the item in the queue from different ends of the queue.

Scala code to remove all elements from the queue

The source code to remove all elements from the queue is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to remove all elements from queue

import scala.collection.mutable._

object Sample {
  // Main method
  def main(args: Array[String]) {
    var queue = Queue(10, 20, 30, 40, 50);

    println("Queue elements:");
    queue.foreach((ele: Int) => print(ele + " "))

    queue.clear();

    println("\nQueue elements:");
    queue.foreach((ele: Int) => print(ele + " "))
  }
}

Output

Queue elements:
10 20 30 40 50 
Queue elements:

Explanation

Here, we used an object-oriented approach to create the program. And, we imported Collection classes using the below statement,

import scala.collection.mutable._

And, we also created a singleton object Sample and defined the main() function. The main() function is the entry point for the program.

In the main() function, we created a queue queue using the Queue collection class. The queue contains integer elements. Then we removed all elements of the queue using the clear() method.

Scala Queue Programs »

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