Convert a string representation of a hex dump to a byte array using Java?

To convert a string representation of a hex dump to a byte array in Java, you can use the DatatypeConverter class's parseHexBinary method.

Here is an example of how to do this:

String hexString = "01a1f6";
byte[] bytes = DatatypeConverter.parseHexBinary(hexString);

This will give you a byte array containing the bytes represented by the hex string.

Alternatively, you can use a loop to parse the hex string and manually convert it to a byte array.

Here is an example of how to do this:

byte[] bytes = new byte[hexString.length() / 2];
for (int i = 0; i < hexString.length(); i += 2) {
   bytes[i / 2] = (byte) ((Character.digit(hexString.charAt(i), 16) << 4)
                        + Character.digit(hexString.charAt(i+1), 16));
}

I hope this helps! Let me know if you have any questions.