public static void main(final String[] args) {
        int cols = 0;
        int rows = 0;

        if (args.length != 2) {
            printUsage();
            return;
        }

        try {
            cols = Integer.parseInt(args[0]);
            rows = Integer.parseInt(args[1]);
        } catch (final Exception ex) {
            printUsage();
            return;
        }

        createFile(cols, rows);
    }