Write a loop that computes the sum of a series. The series is 1 - 1/2 + 1/3 - 1/4 + 1/5 - 1/6 .... Compute this until the denominator is 1000. i.e. 1/1000

Here is what I got but I don't think it's right, since there are (-numbers) in the series.

for(int i=2;i<=1000;i++) { if(i%2!=0) {sum+=1.0/i;} else {sum-=1.0/i;} Log.d("myMessage", "The Sum of Series in int i is: " + i); Please help me figure this out