Java RMI - 在服务器端注册客户端

I am quite new to Java RMI. I have read the Sun tutorials as well as some info in a book about distributed systems. Yet, I am quite confused about the task of the server. Although the server is supposed to be easy to design, I don't really get the grisp. My remote interface provides me with the function:I am quite new to Java RMI. I have read the Sun