improved comments

examples/src/TcpExamples/TcpExample4DispatchServer.java

@@ -33,27 +33,33 @@ public class TcpExample4DispatchServer
     public static void main(String[] args)
     {
         try {
-            ServerSocket serverSocket = new ServerSocket(2317);
+            ServerSocket             serverSocket = new ServerSocket(2317);
+            Socket                   clientConnectionSocket;
             TcpExample4HandlerThread handlerThread;
-            Socket clientConnection;
 
             int connectionCount = 0; // state variable
 
             System.out.println(TcpExample4DispatchServer.class.getName() + " ready to accept socket connections...");
             while (true) // infinite loop
             {
-                clientConnection = serverSocket.accept(); // block! until connected
+                clientConnectionSocket = serverSocket.accept(); // block! until connected
 
                 connectionCount++; // unblocked, got another connection
                 
-                // TODO provide initial message *to the client* that we are handing off to a dispatch thread... because that is polite behavior.
-                // plenty of code in Example3, we will let TcpExample4HandlerThread introduce itself
+                // TODO option for the student, provide initial message *to the client*
+                // that we are handing off to a dispatch thread... because that is polite behavior.
+                // Plenty of code in Example3, we instead let our proxy thread
+                // TcpExample4HandlerThread introduce itself to the client.
                 
                 System.out.println("=============================================================");
                 System.out.println(TcpExample4DispatchServer.class.getName() + ".handlerThread created for connection #" + connectionCount + "...");
-                handlerThread = new TcpExample4HandlerThread(clientConnection); // hand off the aready-created, connected socket to constructor
+                
+                // hand off this aready-created and connected socket to constructor
+                handlerThread = new TcpExample4HandlerThread(clientConnectionSocket); 
                 handlerThread.start();// invokes the run() method in that object
                 System.out.println(TcpExample4DispatchServer.class.getName() + ".handlerThread is now dispatched and running, using most recent connection...");
+                
+                // while(true) continue looping, serverSocket is still waiting for another customer client
             }
         } 
         catch (IOException e) {
@@ -64,6 +70,6 @@ public class TcpExample4DispatchServer
                 System.out.println("*** Be sure to stop any other running instances of programs using this port!");
             }
         }
-        System.out.println("=============================================================");
+        System.out.println("============================================================="); // execution complete
     }
 }