explanatory comment

examples/src/TcpExamples/TcpExample4Client.java

@@ -51,8 +51,10 @@ public class TcpExample4Client
                 // line after 10 sec.
                 long startTime = System.currentTimeMillis();
 
-                // open a socket for each loop
-		Socket socket = new Socket(DESTINATION_HOST, 2317);
+                // Open a socket for each loop
+		Socket socket = new Socket(DESTINATION_HOST, 2317); 
+                // Note our local port on this client host is not specified - because 
+                // that doesn't matter.  It is an "ephemeral" port on localhost.
 
                 // Setup.  Read the single line written by the server.
                 // We'd do things a bit differently if many lines to be read