Why does writeUTFBytes mess up non-english characters?

I'm writing all sorts of multi lingual text to .txt files using A开发者_C百科IR's

fileStream.writeUTFBytes()

For english characters everything works perfectly. But as soon as there are chinese, arabic or any other non-english characters the sentences are totally messed up.

For example:

对着大叔摄影师的确没爱....

becomes

对着大叔摄影师的确没爱....

How can this be fixed?

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writeUTFBytes doesn't mess up anything since it doesn't process the content.
Whatever goes in the pipe comes out.

The text you are sending is most likely encoded in Unicode/UTF-8
Make sure that you are openning the file with an editor that supports unicode (even Windows Notepad supports it, but it defaults to ANSI).