Apple Developer interview questions

I went to Apple's event on campus and a recruiter contacted me the next day, telling me I got an interview. It was very casual and mostly behavioral questions, demo my past projects and talking about my experiences. Keep in mind I am a college freshman, so this is not the usual case.

Agreed to meet on-site in Santa Clara. Stood outside, apparently interviewer was waiting at a different door. He offered water. After going into the interview room had a whiteboard coding session. It involved creating a Java function to find the smallest number in an array. They emphasized communication with the interviewer who I would be working with. They were flexible and helpful during this point. After there were questions about Big O notation and Machine Learning. After the interview, in the parking lot, he started asking me about previous jobs I held.