add diagnostic for host name, note this might only show up for your system's...

 add diagnostic for host name, note this might only show up for your system's telnet connection since hostnames aren't part of TCP

examples/src/TcpExamples/TcpExample2ConnectionCounting.java

@@ -98,8 +98,11 @@ public class TcpExample2ConnectionCounting
 //                        // Where are we?  In other words, what is our host number? Advertise it.
 //                        // Note that we use the serverSocket to get address, since host may have multiple network connections.
 //                        // https://stackoverflow.com/questions/9481865/getting-the-ip-address-of-the-current-machine-using-java
-//                        String localHostAddress = clientConnection.getInetAddress().getHostAddress();
+//                        String localHostAddress = clientConnectionSocket.getInetAddress().getHostAddress();
 //                        System.out.println("Local host address is " + localHostAddress);
+//                        // add diagnostic for host name, note this might only show up for your system's telnet connection since hostnames aren't part of TCP
+//                        String localHostName     = clientConnectionSocket.getInetAddress().getHostName();
+//                        System.out.println("Local host name    is " + localHostName);
 //                        if (localHostAddress.contains("/"))
 //                            localHostAddress = localHostAddress.substring(localHostAddress.indexOf("/")+1);
 //                        // show localhost IP number to facilitate connections over local area network (LAN, WAN)