Reddit Daily Programmer 228 [Easy]: Letters in alphabetical order

lettersInAlphabeticalOrder.java

class lettersInAlphabeticalOrder {
    public static void main(String[] args) {
        String[] array = new String[]{"billowy", "biopsy", "chinos", "defaced", "chintz", "sponged", "bijoux", "abhors", "fiddle", "begins", "chimps", "wronged"};
        for (int i = 0; i < array.length; i++) {
            System.out.println(array[i] + " " + isAlphabetical(array[i]));
        }
    }
    public static String isAlphabetical(String input) {
        input = input.toLowerCase();
        boolean failed = false;
        int i = 1;
        while (!failed && i < input.length()) {
            if (input.charAt(i) < input.charAt(i-1)) {
                failed = true;
            }
            i++;
        }
        if (failed == false) {
            return "IN ORDER";
        }
        else {
            failed = false;
            while (!failed && i > 0) {
                if (input.charAt(i) > input.charAt(i-1)) {
                    failed = true;
                }
                i--;
            }
            if (failed == false) 
                return "REVERSE ORDER";
            else
                return "NOT IN ORDER";
        }
    }
}