Wrote more code

proto/ProtoHandler.java

@@ -4,6 +4,7 @@ public interface ProtoHandler
 {
     void handleJoin(String username);
     void handlePart(String username);
-    void handleListing(String names[]);
+    void handleListing(String username, String names[]);
+    void handleListingRequest(String username);
     void handleUnknownCommand(byte id);
 }

proto/ProtoID.java

@@ -1,6 +1,6 @@
 package proto;
 
-// This file is mo
+// This file is more of a reference than code that will actually be used
 
 // As agreed upon when designing the protocol
 public enum ProtoID

proto/ProtoIn.java

@@ -2,6 +2,7 @@ package proto;
 
 import java.io.DataInputStream;
 import java.nio.charset.Charset;
+import java.util.ArrayList;
 
 public class ProtoIn
 {
@@ -34,9 +35,23 @@ public class ProtoIn
                 switch (id)
                 {
                     case 3:
-                        short nlen = dis.readShort();
                         String username = readname();
-
+                        if (length == 0)
+                        {
+                            Thread t = new Thread(() -> handler.handleListingRequest(username));
+                            t.start();
+                        } else
+                        {
+                            ArrayList<String> names = new ArrayList<>();
+                            int a = 0;
+                            while (a < length)
+                            {
+                                String name = readname();
+                                a += name.length();
+                                names.add(name);
+                            }
+                            handler.handleListing(username, (String[]) names.toArray());
+                        }
                         break;
                     default:
                         Thread t = new Thread(() -> handler.handleUnknownCommand(id));