Convert Hex String to unsigned Byte Array in Java

Question

I get hex strings of 14 bytes, e.g. a55a0b05000000000022366420ec. I use javax.xml.bind.DatatypeConverter.parseHexBinary(String s) to get an array of 14 bytes. Unfortunately those are unsigend bytes like the last one 0xEC = 236 for example.

But I would like to compare them to bytes like this: if(byteArray[13] == 0xec) Since 235 is bigger than a signed byte this if statement would fail. Any idea how to solve this in java? Thx!

Answer 1

Try if(byteArray[13] == (byte)0xec)

Answer 2

You can promote the byte to integer:

if((byteArray[13] & 0xff) == 0xec)