Q:

Scala program to delete an item from the queue using dequeue() method

belongs to collection: Scala Queue Programs

YasminRadwan26
Save to bookmark
|
2022-07-08
|
  286 
0

Here, we will create a queue using the Queue collection class. Then we will delete an item from the queue using dequeue() method and then print the updated queue on the console screen.

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 programming, examples, Scala programming examples,
login and add your own answer to this question

All Answers

YasminRadwan26
2022-07-08
need an explanation for this answer? contact us directly to get an explanation for this answer

Program/Source Code:

The source code to delete an item from the queue using dequeue() method is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to delete an item from queue
// using dequeue() method

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 + " "))

    var item = queue.dequeue;
    println("\nDeleted item is: " + item);

    println("Elements after dequeue operation: ")
    queue.foreach((ele: Int) => print(ele + " "))

    println();
  }
}

Output:

Queue elements:
10 20 30 40 50 
Deleted item is: 10
Elements after dequeue operation: 
20 30 40 50

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 the first item from the queue using the dequeue() method. After that, we printed the updated queue on the console screen.

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)

Scala Queue Programs
This question belongs to these collections

Similar questions

need a help?

find thousands of online teachers now
Scala program to check a queue is empty or not... >>
<< Scala program to add an item in the queue using en...