Trying to write a server.

Hello Grapeviners. My belief is technical growth and some side projects will go a great length to keep you employable Or even marketable if one chooses freelancing.

I have been writing Java for a few years now. However, I was always afraid to touch codes that had Sockets and TCP Connections.

Hence it's a target for me to learn and write a good resilient client and server (preferably in TCP)

I researched online bit could not find good tutorials on it. Please help me by guiding to some good material.