FizzBuzz 4 spaces indent with an increase of 4 spaces

FizzBuzzComplex.java

class FizzBuzz {
    public static void main(String[] args) {
            if (args != null && args.length == 1) {
                        try {
                                        int number = Integer.parseInt(args[0]);
                                        for (int i = 1; i < number; i++) {
                                                            if (i % 3 == 0 && i % 5 == 0) {
                                                                                    System.out.println("FizzBuzz");
                                                            } else if (i % 3 == 0) {
                                                                                    System.out.println("Fizz");
                                                            } else if (i % 5 == 0) {
                                                                                    System.out.println("Buzz");
                                                            } else {
                                                                                    System.out.println(i);
                                                            }
                                        }
                        } catch (NumberFormatException e) {
                                        throw new IllegalArgumentException("please pass in a number", e);
                        }
            } else {
                        throw new IllegalArgumentException("please pass in a number");
            }
    }
}

FizzBuzzLessComplex.java

class FizzBuzz {
    public static void main(String[] args) {
            if (args == null || args.length != 1) {
                        throw new IllegalArgumentException("please pass in a number");
            }
            int number = parse(args[0]);
            for (int i = 1; i < number; i++) {
                        System.out.println(numberToFizzBuzz(i));
            }
    }
    private static int parse(String number) {
            try {
                        return Integer.parseInt(number);
            } catch (NumberFormatException e) {
                        throw new IllegalArgumentException("please pass in a number", e);
            }
    }
    private static String numberToFizzBuzz(int i) {
            if (i % (3 * 5) == 0) {
                        return "FizzBuzz";
            } else if (i % 3 == 0) {
                        return "Fizz";
            } else if (i % 5) {
                        return "Buzz";
            } else {
                        return String.valueOf(i);
            }
    }
}