estimate Euler's constant

gistfile1.java

public class e
{
    public static void main(String[] args)
    {
        int iterations = Integer.parseInt(args[0]);

        double result = 0;
        for (int i = 0; i < iterations; i++)
            result = result + 1.0 / fact(i);
        System.out.println("e estimated with " + iterations + " terms: " +
                           result);
    }

    public static long fact(int n)
    {
        long result = 1;
        for (int i = n; i > 1; i--)
            result = i * result;
        return result;
    }
}