After I had a phone screen with the hiring manager, I was invited to an on-site interview with for 5 different developers, one at a time, each for 30 minutes. I spent most of my time coding on a white board and answering core java questions. Overall I felt that the interview went well. It could of went a lot better but I was completely flustered by the second person that interviewed me (interviewer B). My confusion was caused by interviewer B refusing to accept my answer to his 'reverse a string' question (without using StringBuilder). Below is the method that I drew up: String reverse(String str){ char[] in = str.toCharArray(); for(int i = 0; i < str.length()/2; i++){ char temp = in[str.length() - 1 -i]; in[str.length() - 1 -i] = in[i]; in[i] =temp; } return new String(in); } When I finished, he kept asking me if I could find an issues with my code. I couldn't seem to find anything wrong so I walked him through the program line by line and still couldn't find an issue. Interviewer B then told me that my index was off by one and I was not retrieving the last value of the char array. After attempting to argue that I was not off by one, he began to chuckle at me and insist that I was incorrect. By this point I was muddled and gave in. I updated a couple lines of the method to be: char temp = in[str.length() -i]; in[str.length() -i] = in[i]; And then he accepts my answer. I thought those changes would have been an stack overflow exception but I just assumed it was correct somehow. So I met with the next interviewer (Interviewer C) , After some core java questions he tells me to report to the white board and asks me the last question I wanted to hear, "Write a method to reverse a String". So I code it to exactly what Interviewer B accepted. In my head I knew it was wrong but I felt that maybe things worked differently at Comcast. Interviewer C immediately tells me that it is an stack overflow exception. I adjusted my code to my original solution and he accepts it. In hindsight I wish that I would have stuck to what I believed was correct and should have asked the interviewer to run the program on his laptop instead of trusting him. Because of what happen I felt that the interview was very unfair.