public static void main(String[] args) { int k = Integer.parseInt(args[0]); RandomizedQueue<String> queue = new RandomizedQueue<>(); while (!StdIn.isEmpty()) { queue.enqueue(StdIn.readString()); } Iterator<String> itr = queue.iterator(); for (int i = 0; i < k; i++) { System.out.println(itr.next()); } }