Method randomCode

src/main/java/com/l1yp/util/HexUtil.java:99–106

(int count)

    }

    public static String randomCode(int count) {
        StringBuilder sb = new StringBuilder(count);
        for (int i = 0; i < count; i++) {
            int idx = ThreadLocalRandom.current().nextInt(lower_digits.length);
            sb.append(lower_digits[idx]);
        }
        return sb.toString();
    }

    public static void main(String[] args) throws IOException {
        ByteBuffer buffer = ByteBuffer.allocate(16);