Questions posées lors d’un entretien d’embauche pour Java Developer chez Informatica

Got a call from them for interview. I went there and cleared all the round which were conducted on that day. I was told i will get feedback after 2 days. The worst part is they didn't contact, and when i dropped mail multiple times, didn't get any reply from them. All the interviewers are nice but one interviewer was so arrogant he was not even listening to my answer, he got laptop with him, and was expecting specific approach.