Data commit

Task/Queue-Usage/Kotlin/queue-usage.kotlin

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+// version 1.1.2
+
+import java.util.*
+
+fun main(args: Array<String>) {
+    val q: Queue<Int> = ArrayDeque<Int>()
+    (1..5).forEach { q.add(it) }
+    println(q)
+    println("Size of queue = ${q.size}")
+    print("Removing: ")
+    (1..3).forEach { print("${q.remove()} ") }
+    println("\nRemaining in queue: $q")
+    println("Head element is now ${q.element()}")
+    q.clear()
+    println("After clearing, queue is ${if(q.isEmpty()) "empty" else "not empty"}")
+    try {
+        q.remove()
+    }
+    catch (e: NoSuchElementException) {
+        println("Can't remove elements from an empty queue")
+    }
+}