confirmation

private static final int ITERATIONS = 100000000;

    public static void main(String[] arguments) {

        final int iterations = 20;
        long optionOneTotal = 0;
        long optionTwoTotal = 0;

        for (int i = 0; i < iterations; i++) {

            optionOneTotal += optionOne();
            optionTwoTotal += optionTwo();
        }

        System.out.println("OptionOne time: " + (optionOneTotal / iterations));
        System.out.println("OptionTwo time: " + (optionTwoTotal / iterations));
    }

    private static long optionOne() {

        long start = System.nanoTime();
        int n = 0;
        for (int i = 0; i < ITERATIONS; i++) {
            n += 2 * i * i;
        }
        System.out.println(n);
        return System.nanoTime() - start;
    }

    private static long optionTwo() {

        long start = System.nanoTime();
        int n = 0;
        for (int i = 0; i < ITERATIONS; i++) {
            n += 2 * (i * i);
        }
        System.out.println(n);
        return System.nanoTime() - start;
    }