ZapLabs Java Engineer interview questions

Talked to them at a career fair, got a request for a video call interview with an Engineer about a week later. Video call went quite well in the . Was then contacted to do an onsite interview, with clear directions on how to get to the building. It did not seem like they were prepared to interview me as the room they set up for me was filled by another group. Was interviewed by 2 engineers and asked java questions and 2-3 algorithm questions. Did not get an offer at the end, but the experience was pretty good.