Fix: Test server can now store integer variables.

src/main/java/de/hdm_stuttgart/battlearena/Model/Multiplayer/TestServer/Server.java

 package de.hdm_stuttgart.battlearena.Model.Multiplayer.TestServer;
 
-import de.hdm_stuttgart.battlearena.Model.Multiplayer.ConnectionHandler;
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
-
 import java.net.*;
 import java.io.*;
 
 public class Server {
     private ServerSocket serverSocket;
 
-    private static BufferedReader px;
-
     public static void main(String[] args) throws IOException {
         Server server = new Server();
-        server.start(4444);
+        server.start("lolcalhost",4444);
     }
 
-    public void start(int port) throws IOException {
+    public void start(String lolcalhost, int port) throws IOException {
         serverSocket = new ServerSocket(port);
         while (true)
             new EchoClientHandler(serverSocket.accept()).start();
@@ -33,6 +27,7 @@ public class Server {
         private Socket clientSocket;
         private PrintWriter out;
         private BufferedReader in;
+        private static BufferedReader px;
 
         public EchoClientHandler(Socket socket) {
             this.clientSocket = socket;
@@ -47,7 +42,7 @@ public class Server {
                 px = in;
 
                 while (true) {
-                    System.out.println("Received message from client: " + inputLine);
+                    System.out.println("Received message from client: " + px.readLine());
 
                     if (inputLine.equals(0)) {
                         out.println("bye");
@@ -58,7 +53,7 @@ public class Server {
 
                     out.println(px);
                     out.flush();
-                    System.out.println("Sent response to client: " + px);
+                    System.out.println("Sent response to client: " + px.readLine());
                 }
             } catch (SocketException e) {
                 System.out.println("Client connection reset.");