public synchronized void log (String str) {
		PrintWriter out;
		try {
			out = new PrintWriter(new BufferedWriter(new FileWriter(acronym + Parameters.SERVER_LOG_EXTENSION,true)));
			Date date = new Date();
			SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy h:mm:ss a");
			String formattedDate = sdf.format(date);
			out.println(formattedDate + " : "  + str);
			out.close();
		}
		catch (IOException e) {e.printStackTrace();}
	}