string to hex value

Question

Is there any java utility to convert string to hex value (integer) ?

Do you want to turn a string such as "abc" into the hex value of each character, or are you trying to turn something like "0x3df" into a numerical value? — Pesto, Jul 08 '09 at 12:29
Do you mean a string that represents a number? Or an arbitrary text string? — jwoolard, Jul 08 '09 at 12:29
Your question is too ambiguous. Give some examples of your desired input and output. — Stu Thompson, Jul 08 '09 at 12:30
Maybe look at this question: https://stackoverflow.com/q/923863/16632604 — Flimtix, Jun 02 '22 at 12:10

score 14 · Accepted Answer · answered Jul 08 '09 at 12:30

14

When you have a string starting with 0x or #

Integer.decode(hexStr);

is the goal

Or

Integer.parseInt(hexString, 16);

answered Jul 08 '09 at 12:30

Markus Lausberg

This is what i need, thanx.. Integer i = Integer.decode("0xA"); System.out.println(i); output : 10 – penguru Jul 08 '09 at 12:48

score 4 · Answer 2 · answered Jul 08 '09 at 12:32

4

Is this what you are looking for?

Integer.toHexString(Integer.parseInt(String));

answered Jul 08 '09 at 12:32

AlbertoPL

score 3 · Answer 3 · answered Jul 08 '09 at 12:29

3

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();

answered Jul 08 '09 at 12:29

Brian Agnew

score 1 · Answer 4 · answered Jul 08 '09 at 12:32

1

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.

answered Jul 08 '09 at 12:32

jwoolard

4 Answers4