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Scala program to check a queue contains a specified item

belongs to collection: Scala Queue Programs

YasminRadwan26
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2022-07-09
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Here, we will create a queue using the Queue collection class and then we will check created queue contains a specified item using contains() method. The contains() method returns true if the queue contains the specified item. Otherwise, it returns false.

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 check a queue contains a specified item is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to check a queue contains 
// a specified item

import scala.collection.mutable._

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

    if (queue.contains(30))
      println("queue contains item 30");
    else
      println("queue does not contain item 30");
  }
}

Output:

queue contains item 30

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. Then we checked the queue contains item 30 using contains() method and print the appropriate message on the console screen.

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