public static void main( String[] args ) {
        int newport = 0;
        String log = "";

        if ( args.length > 0 ) {
            args[ 0 ].trim();

            try {
                newport = Integer.parseInt( args [ 0 ] );
            } catch ( NumberFormatException e ) {
                if ( !args[ 0 ].equalsIgnoreCase( "-h" ) ) {
                    System.out.println( "server: Invalid argument" );
                } else {
                    System.out.println( "Syntax: java Server [port-number]" );
                }

                System.exit( 0 );
            }
        } else {
            newport = defaultPort;  //falls kein Port angegeben wurde
        }

        if ( newport < 1024 ) {   //teste, ob Portnummer gueltig ist
            System.out.println( "server: Invalid port number! Using default port " + defaultPort );
            newport = defaultPort;
        }

        try {
            Server serv = new Server( newport );

            while ( true ) {
                serv.connection = serv.servSocket.accept();   //blockiert, bis neuer
                //Client sich anmeldet
                serv.connection.setSoTimeout( 60000 );
                serv.in = new BufferedReader( new
                                              InputStreamReader( serv.connection.getInputStream() ) );
                String msg = serv.receive();
                serv.addPlayer( msg );   //hier werden die Spieldaten erwartet
                //(Spielname, min/maxPlayer)
                log = "server: Accepted new connection to client on port " + serv.connection.getPort() + "\n";
                System.out.print( log );
                serv.log( log, newport );
                log = "server:received data from new player: " + msg + "\n";
                System.out.print( log );
                serv.log( log, newport );
            }
        } catch ( InterruptedIOException e ) {
            System.out.println( "server: client not responding" );
        }
        catch ( IOException e ) {
            System.out.println( "server: error connecting to client" );
        }
    }