/** Main method
     *
     * @param args args[0] should be the name of the IManager class and args[1] the name of a file containing the list of players or teams, one per line
     *
     * @throws FileNotFoundException thrown if the list file isn't found
     */
    public static void main(String[] args) throws FileNotFoundException {
        if (args.length!=2) {
            System.out.println("Usage: CompetitionManager <IManager class name> <list file> ");
            System.exit(0);
        }
        IManager manager = IManagerFactory.getManager(args[0]);
        if (manager==null) {
            System.out.println("Can't find IManager class name: " + args[0]);
            System.exit(0);
        }
        ArrayList<String> competitors = readPlayers(args[1]);