Question

I have a little issue with Java UTF-8 converting.I have this Objective C code :

const char *p = [[NSString stringWithFormat:@"0x%@",md5Hash] UTF8String];

where md5Hash is NSString and I need to find a way to declare the same char p in Java but didn’t find how to set char to UTF-8.

Any ideas or suggestions?

Answer 1

I don’t know about Objective C, but in Java chars are UTF-16 and Strings internal char buffer are that way. You can convert from and to UTF-8 if you need:

// creates a String from the bytes understanding them as UTF-8 chars
byte[] data = ...
new String(data, "UTF-8"); 

or

// get the bytes that would represent that string in UTF-8
String myString = "Hello";
myString.getBytes("UTF-8"); 

Hope it helps…

Note: if you need an streaming solution you can also use InputStreamReader and OutputStreamWriter for this very same transformation but that’s another story…