Impelsys Senior Android Developer interview questions

They asked me to come at 3:30 PM and I reached at that time but I had to wait for extra 1 hour because no one knowing whom to call. Anyways, interview started and that was worst part. That guy was so adamant that he was denying everything which I was explaining. He wanted me to write everything with exact syntax. Many things which I know I was correct, he did not approve my answer. So pathetic.