Add base files

src/main/java/com/university/chat/Client/ServerListener.java

@@ -0,0 +1,20 @@
+package com.university.chat.Client;
+
+public class ServerListener implements Runnable{
+    // TODO: store the ObjectInputStream from the user socket
+    //          (this should be the same input stream the
+    //           chatClient created when connecting)
+
+    @Override
+    public void run() {
+        try {
+            // TODO: In an infinite loop read objects from the server
+            //   - if it's a ChatMessage  -> print "<sender>: <content>"
+            //   - if it's a FileMessage  -> print that a file was received
+            //                               (filename + sender), it's already
+            //                               saved to disk by the server.
+        } catch (Exception e){
+            System.out.println("Disconnected from server");
+        }
+    }
+}

src/main/java/com/university/chat/Client/TransferProgress.java

@@ -0,0 +1,37 @@
+package com.university.chat.Client;
+
+public class TransferProgress {
+
+    private final long total;
+    private final long startTime;
+    private static final int WIDTH = 30;
+
+    public TransferProgress(long total) {
+        this.total = total;
+        this.startTime = System.currentTimeMillis();
+    }
+
+    public void update(long current) {
+
+        double percent = (double) current / total;
+        int filled = (int) (percent * WIDTH);
+
+        StringBuilder bar = new StringBuilder("[");
+        for (int i = 0; i < WIDTH; i++) {
+            bar.append(i < filled ? "█" : " ");
+        }
+        bar.append("]");
+
+        long elapsed = System.currentTimeMillis() - startTime;
+        double speed = current / 1024.0 / 1024.0 / (elapsed / 1000.0 + 0.001);
+
+        System.out.printf("\r%s %3d%% | %.2f MB/s",
+                bar,
+                (int) (percent * 100),
+                speed);
+
+        if (current >= total) {
+            System.out.println();
+        }
+    }
+}

src/main/java/com/university/chat/Client/chatClient.java

@@ -0,0 +1,29 @@
+package com.university.chat.Client;
+
+public class chatClient {
+    public static void main() {
+        // TODO: Connecting to the server
+        //  1. Create a socket and connect to the server
+        //  2. Create an ObjectOutputStream (out) and ObjectInputStream (in)
+        //      from the socket's streams — output FIRST, then input.
+        //  2. Get the username, and send a LOGIN ChatMessage with that username
+        //  3. Start a new Thread running a ServerListener(in) so incoming
+        //      messages are handled concurrently.
+
+        while (true){
+            try {
+                // TODO: Program loop — read a line from the console and act on it:
+                //   - "/msg <user> <text>"        -> build & send a PRIVATE_MESSAGE
+                //   - "/users"                    -> build & send a USER_LIST request
+                //   - "/sendfile <user> <path>"   -> read the file into a byte[]
+                //                                     (you can use TransferProgress
+                //                                     to show progress)
+                //                                     and send it as a FileMessage
+                //   - anything else               -> send a PUBLIC_MESSAGE
+                //   Remember to flush() the output stream after writeObject().
+            } catch (Exception e){
+                System.out.println("command failed: " + e.getMessage());
+            }
+        }
+    }
+}