Method length

Java/Armstrong-Number.java:26–35

(int N)

  */

	public static int length(int N) {
		int length = 0;

		while (N != 0) {
			N = N / 10;
			length++;
		}

		return length;
	}

	public static boolean isArmstrongNumber(int N, int k) {
		long powerSum = 0;