Question

I’ve been struggling with this for some time, and since I’m originally not a programmer, I’d appreciate any help.Here’s the situation:

1. I have an image file on the file system, as well as converted to byteArrayOutputStream and to a ByteArray.(currently it’s not critical which to choose, so any of these will work fine for input data)

2. I need to have the image represented as a string with the HEX code and a 0x prefix, like this:

Image -> String = ‘0xFFD8FFE000104A46494600010200000100010000FFDB0‘

Thanks in advance to anyone who tries to help! Any sample code or library will be appreciated!

Answer 1

This is the code that worked for me:

public static String getHexString(byte[] b) throws Exception {
  String result = "";
  for (int i=0; i < b.length; i++) {
    result +=
          Integer.toString( ( b[i] & 0xff ) + 0x100, 16).substring( 1 );
  }
  return result;
}

Thanks for the help anyway!