Convert hexadecimal code to text in Java

Asked Apr 29 '15 at 20:39

Active Apr 29 '15 at 21:38

Viewed 68 times

How can I convert code with hexadecimal values to text?

I have this code in java...

for (int i = 0; i < hexValue.length(); i += 2)
{
    String str = hexValue.substring(i, i + 2);
    output.append((char) Integer.parseInt(str, 16));
}

Can you help me, please? :D

asked Apr 29 '15 at 20:39

user3622049

my string is "0x7B5C727466315C616E73695C64656666305C6465667461623235347B5C666F6E7474626C7B5C66305C73776973735C" and NetBeans give me this error when i run the project.... "java.lang.NumberFormatException: For input string: "0x"" – user3622049 Apr 29 '15 at 20:49
Get rid of the 0x in front of the String (or skip over it). – Amber Apr 29 '15 at 20:57
How i ignore that because i need to catch from database? :D – user3622049 Apr 29 '15 at 21:02
Simply do: `str.substring(2)` – gibertoni Apr 29 '15 at 21:32
Are you sure you want to cast the `int` to `char` before appending it to I'm assuming the `StringBuilder output`? By the way use `String.substring` to remove the `0x` before parsing the int. – M. Shaw Apr 29 '15 at 21:32
Can you show me that, please? – user3622049 Apr 29 '15 at 21:38
Even easier than that it would be to just replace the *int i = 0* by *int i = 2*, so that you will be skipping the two first characters – Juan Apr 29 '15 at 22:35
Hello Guys. Now I need to put this data in database my sql? Someone can help me? :D – user3622049 Apr 30 '15 at 10:07

Convert hexadecimal code to text in Java

0 Answers0