improved diagnostics, comments

projects/TcpExample3/Server/TcpServer/src/tcpserver/TcpServer.java

@@ -38,7 +38,7 @@ public class TcpServer
             // Stop the program somewhere else.
             while(true)
             {
-                Socket clientConnection = serverSocket.accept();
+                Socket clientConnection = serverSocket.accept(); // block until connected
                 OutputStream os = clientConnection.getOutputStream();
                 PrintStream ps = new PrintStream(os);
 
@@ -70,7 +70,7 @@ public class TcpServer
                 // a while after the client has stopped needing this
                 // connection. Close() explicitly ends the connection.
                 ps.flush();
-                clientConnection.close();
+                clientConnection.close(); // like it or not, you're outta here!
             }
        }
         catch(Exception e)