Is this the best way to convert String hex to bytes?

Byte yourBytes = new BigInteger(hexString, 16).toByteArray().

– Tom Brito Apr 15 '10 at 19:21 BitInteger handles arbitrary-precision integers so it should be any size. – Taylor Leese Apr 15 '10 at 19:28.

You don't need the subtraction of 256 when the value is greater than 127. Just cast the value to a byte. For example, byte be = (byte) 255 assigns a value of -1 to b.

A narrowing conversion on integer types simply discards the high-order bits that don't fit in the target type.

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