For loop problem

private static boolean isSymmetric(String number) {
        if (number.length() == 1) {
            return true;
        }
        else {
            for (int i = 0, j = number.length() - 1; i <= number.length() / 2; i++, j--) {
                if (number.charAt(i) == number.charAt(j)) {
                    return true;
                }
                else {
                    return false;
                }
            }
        }
    }