Narcissistic Number

class Solution {
    /*
     * @param n: The number of digits. 
     * @return: All narcissistic numbers with n digits.
     */
    public ArrayList<Integer> getNarcissisticNumbers(int n) {
        // write your code here
        ArrayList<Integer> narNum = new ArrayList<Integer>();
        // consider 0
        // Math.pow will return a double, not int
        int start = (int) Math.pow(10, n-1);
        if (n == 1) start = 0;
        for (int i = start; i < (int) Math.pow(10, n); i++) {
            int value = i;
            int sum = 0;
            while (value / 10 != 0 || value % 10 != 0) {
                int digit = value % 10;
                sum += Math.pow(digit, n);
                value /= 10;
            }
            if (sum == i) {
                narNum.add(sum);
            }
        }
        return narNum;
    }
};