refactoring: comments run() try

src/main/java/ClientHandler.java

@@ -20,12 +20,16 @@ public class ClientHandler implements Runnable {
   public void run() {
     
     try {
+      // Set up input and output streams for communication with the client
       fromClientReader = new BufferedReader (new InputStreamReader(connectionToClient.getInputStream()));
       toClientWriter = new PrintWriter (new OutputStreamWriter(connectionToClient.getOutputStream()));
-      chatServer.broadcastMessage(name + " connected.");
       
+      chatServer.broadcastMessage(name + " connected."); // Broadcast a message when the client is connected
+ 
+      // Read messages from the client and broadcast them to all clients
       String message = fromClientReader.readLine();
       while (message!=null) {
+        // Broadcast the client's message to all connected clients
         chatServer.broadcastMessage(name + ": " + message);
         message = fromClientReader.readLine();
       }