Busy with Assignments

Since weeks i'm busy with my assignments. Today I finally finished the distributed systems one which was really hard get running. Especially since I'm trying to make them nice. I did some research into http using java. It will be a little tricky to get it running how I want it. One point is that HTTP comunication is not persistent, i could solve this using a session id. A concerning thing is a missing callback function. I need to have a look whether it is possible to implement it this way that I won't close the PrintWriter on the server side. I'm just afraid that as a result I could get timeout errors. But first I need to go a little deeper into this subject. I'll start to really work with it when I got rid of those assignments.