Oct 13
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You have a couple of choices, either:
- Loop thru the array to convert each byte individually, or
- Use the toString() method of the BigInteger class
// using a loop StringBuilder sb = new StringBuilder(bytes.length * 2); for (int i=0; i< bytes.length; i++) { sb.append(String.format("%02x", bytes[i])); } String hex1 = sb.toString(); // using BigInteger BigInteger bi = new BigInteger(bytes); String hex2 = bi.toString(16);
If you are dealing with large byte arrays or performance is an issue then you should have a read of “Converting large byte array to binary string”.