import scala.collection.mutable.Queue
object QueueExample {
def main(args: Array[String]): Unit = {
// Create a mutable queue of integers
val queue = Queue[Int]()
// Enqueue elements (add elements to the queue)
queue.enqueue(10)
queue.enqueue(20, 30, 40) // You can add multiple elements at once
println(s"Queue after enqueueing: $queue") // Output: Queue after enqueueing: Queue(10, 20, 30)
// Dequeue elements (remove elements from the front of the queue)
val dequeuedElement = queue.dequeue()
println(s"Dequeued element: $dequeuedElement")
println(s"Queue after dequeueing: $queue")
// Peek at the front element without removing it
val frontElement = queue.front
println(s"Front element: $frontElement")
// Check if the queue is empty
println(s"Is the queue empty? ${queue.isEmpty}")
}
}
/*
run:
Queue after enqueueing: Queue(10, 20, 30, 40)
Dequeued element: 10
Queue after dequeueing: Queue(20, 30, 40)
Front element: 20
Is the queue empty? false
*/
