Method byteToHex

algorithm/TeaEncrypt.java:36–43

(int n)

    }

    private static String byteToHex(int n) {
        if (n < 0) {
            n = n + 256;
        }
        int d1 = n / 16;
        int d2 = n % 16;
        return HEX_ARRAY[d1] + HEX_ARRAY[d2];
    }

    private static int unpack(String tmp, int start) {
        char[] arr = tmp.substring(start).toCharArray();