Not sure if this it the right section, if not could someone please move it?
I am creating a multiplayer FPS game. I have most of the functionality in the game working with players running around over a network, but I am stuck on how I would do an in game chat, I have lobbies in which players can communicate, but now I would like it so that during the game they can press a key and can start typing and send messages.
Btw I am using JME3
Any ideas would be helpful 
Thanks