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what is the encoding of String that i get using

Preferences.userRoot().get(key, def)

on a windows machine? is it UCS-2? or utf-8? or just some cp125*? and what is it on linux and mac?

EDIT:
i looked at this question What is the character encoding of String in Java? I know that java stores Strings as UTF-16, but what about Preferences or cmd arguments? when reading strings from there does it use default platform encoding?

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    Possible duplicate of What is the character encoding of String in Java? Commented Dec 22, 2015 at 4:00
  • I think you shouldn't care. It's handled by the system automatically. String is already decoded for you. What issue are you having with the Preferences API? Commented Dec 22, 2015 at 4:27
  • @markspace , the problem is when i put some Cyrillic characters "by hand" and then try to get them, i get boxes, as it can not decode them correctly i guess. When i put Cyrillic characters using Preferences API they are converted to Unicode code points, so i think the problem is when i get string from preferences it tries to get it as UTF-16? am i right? Commented Dec 22, 2015 at 5:03
  • I think we'll need to see this "by hand" code. Probably you messed up that part. Commented Dec 22, 2015 at 5:32
  • @markspace, "by hand" i mean without any code, manually, or if for instance i put it there from C# program Registry.SetValue("HKEY_CURRENT_USER\\Software\\JavaSoft\\Prefs", "someKey", "someString", RegistryValueKind.String); Commented Dec 22, 2015 at 5:41
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