public static void main(String[] args) {
        if ((args.length > 1) || (args.length > 0 && args[0].equals("-h"))) {
            System.out.println(USAGE);
            System.exit(1);
        }

        String bankName;
        if (args.length > 0) {
            bankName = args[0];
            new Client(bankName).run();
        } else {
            new Client().run();
        }
    }