Two Sigma interview questions

I had heard of the company and found them online. I emailed in my resume and heard back from HR with a phone interview. I spoke to a quant there, who asked about my experience and also asked technical questions, mostly statistics and algorithms. I then got a second phone interview, which was similar.

I got an phone interview by the project manager. The whole interview took about 45 minutes. At first a few questions were asked about my background. Then followed by a few more specific technical questions. The whole interview was conducted in a very polite manner. Technical questions targeted mainly on java programming langugages. I was asked the differences about exceptions and run-time errors, how would I handle an exception in a given scenario.