HR and Technical both in the same interview. The HR part was presenting the job position, the company and the way the internship will be. The technical one was with question of Java, basically the first page you find on internet with "Java interview questions". Then some data structures, algorithms, http, linux commands and databases questions, that you may find somehow easy at first, but they can be tricky. After these a fairly easy problem.

Only one interview, which took about 1 hour. First part were HR questions then a technical questions and a coding problem. It ended with another round of HR questions and then I got to ask the interviewer some of my own questions about the company.