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Your advice worked great!
I really do appreciate the time and help you gave me, this had been bothering me for ages.
Thanks a million!

So do StringBuilders send it segments?

I took on what you said and tried all the following:
A)added "NAMES" onto each arraylist element
B)add Names before each String in the StringBuffer
and i...

A thread(with a runnable target) is constantly running checking for server responses:

where line = in.readLine();


else if (line.startsWith("NAMES")) {
...

-Edit, by just printing out the StringBuilder with "\n" added, results do print out on new lines. So its bound to be a PrintWriter issue perhaps?

while (arrayIterator.hasNext()) {
buffer.append(arrayIterator.next().toString());
//buffer.append(NEW_LINE);
}
...

I've made a client-server chat program - many clients to one server.
To end it off, I made a JTextArea to store information about all clients currently connected to the server.

My method is not...