You have that information on the server? Then you don't display it on the client. At least, the server doesn't. It's up to the client to display it.
So your server code should just send that information to the client. It's likely you'll have to modify your communications protocol to include something which transmits that information from the server to the client.
An example of a server sending data to a client? Sure, I guess you haven't even started to design your communications protocol so let me suggest that when the client first connects, the server will respond by sending the IP address and port from which the client is communicating.
Now I'm looking for the java code that will display the client IP. By what your saying it seems it isnt as easy to display the clients IP and port number as opposed to what I have written above which shows the Host IP and port? Is there a way of displaying it as shown above?
I'm sorry, I don't seem to understand what you're asking. First you said you wanted to display the host's information at the client, so we had a rather unproductive conversation about how to do that.
But now it seems that you want to display the client's information at the host. Do I have that right? Or is your question actually more like how to find out what it is? I seem to be having a hard time understanding you.