how to convert ASCII to Hexa decimal

[sahithi_moparthi]

Hi Every One,

     Could anyone suggest me how to convert the ASCII to Hexadecimal (using UDF /Java mapping).

Thanks in Advance.

[Ryan-Crosby]

Hi Sahithi,

Here is a sample of a java mapping I have done where I had to take the input stream and convert it to a hexadecimal string so it could be processed in a proxy:

private String digits = "0123456789ABCDEF";
// Initialize variables, objects for processing
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(out));
int c, len;
byte[] bytes = new byte[4096];
StringBuffer sb = new StringBuffer();
// Convert input stream to string in hexadecimal notation
try {
  while((len = in.read(bytes)) != -1)
  {
    for(int i = 0; i < len; i++)
    {
      c = bytes[i] & 0xff;
      sb.append(digits.charAt(c >> 4));
      sb.append(digits.charAt(c & 0xf));
    }
  }
}catch (IOException e) {
    e.printStackTrace();
}
// Now write to output stream
try {
  // Output file data in hexadecimal string
  bw.write(sb.toString());
  bw.close();
}catch (IOException ex) {
  ex.printStackTrace();
}

I tried using the Java version of toHexString() but found that there was some kind of bug that resulted in a bad string output.

Regards,

Ryan Crosby

[rajasekhar_reddy14]

google

http://stackoverflow.com/questions/2711264/how-to-convert-ascii-to-hexadecimal-values-in-java