I fixed minor things

I'm not sure how you are using your numbers to calculate PI, but this should change things.

If you want integers, then change line 40 to this: `writerD.format("%.0f%n", Math.floor(randomGenerator(200, 0)));` and line 54 to this: `writerTheta.format("%.0f%n", Math.floor(dblRandomNum));`.

Good luck.