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Scala program to remove all elements from the queue

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YasminRadwan26
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2022-07-09
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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.

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YasminRadwan26
2022-07-09
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Program/Source Code:

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.

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