web development helpdesk

The BigDecimal class makes this really easy as it has a method toByteArray() that returns exactly what we need. Just need to create a BigDecimal and call the method.

   byte[] bytes = new BigInteger(hexString, 16).toByteArray();

written by objects \\ tags: BigDecimal, byte array, hex

Use the getAddress() method in the InetAddress class.

InetAddress address =
   InetAddress.getByName("192.168.1.1");
byte[] bytes = address.getAddress();
for (byte b : bytes)
{
    System.out.println(b & 0xFF);
} 

written by objects \\ tags: byte array, InetAddress, ip address