I have undertaken 2 rounds of interviews. First round interviewer was very professional. Question asked was very selective & generalized for any programmer. Second round interviewer was very unprofessional. Interviewer was continuously yawning during the interview while I was sharing my coding. The program that was asked to write was not having a general Java8 solution. Java8 question was asked & he gave me answer towards the end with a standalone class. With this logic interviewee is expected to by heart all Java libraries. The intent of such type of interview is questionable. Interviewer said he has a meeting to attend & need to leave earlier while he himself joined late. Am I supposed to know their calendar schedule?