Is there any java utility to convert string to hex value (integer) ?
Is this what you are looking for?
Integer.toHexString(Integer.parseInt(String));
When you have a string starting with 0x or #
Integer.decode(hexStr);
is the goal
Or
Integer.parseInt(hexString, 16);
Your question is a little ambiguous, I think.
If you have a hex string (e.g. "ab10"), then you can use
int i = Integer.valueOf(s, 16).intValue();
Try some of the methods of the Integer class:
Integer.toHexString(Integer.parseInt(myString, 10))
This assumes that your original string is an integer base ten.