public static void main(String args[]) throws Exception { 
		 ServerTTPService service;
		 if(args.length != 1) {
			printUsage();
			return;
		 }
			
		 int port = Integer.parseInt(args[0]);
		 
		 service = new ServerTTPService("localhost", (short)port);
		 System.out.println("Starting Server ... on "+port);
		 ConDescriptor clientCon;
		 
	     while(true) {
	    	 if((clientCon = service.serverListen()) != null) {
	    		 new TransferfileServer(clientCon);
	    	 }
	     }  
	}