Running app doesn't display unicode chars

So far, i didn't care about character encodings. When i setup a string in java i just used my special characters, like e.g. the german umlauts:
String text = "�usserlich �berhaupt nicht sch�n."; //html: Äusserlich überhaupt nicht schön Then i changed the file encoding in my IDE (eclipse) to UTF-8. The first time i reloaded my source files, i had to replace my texts by retyping my special charaters in the source. I thought that would have been enough.
But now, such text doesn't display anymore in a Swing component like a JTextField - instead the special characters are replaced by weird (sometimes multiple) other characters.
The only workaround i've found so far is, to replace all special characters in my source code with the corresp�onding unicode code character "\uxxxx" (backslash + u + 4 chars). But then this would be a step back writing text in the source code. I thought it would be easier to use Unicode ...?

This post should be under iCloud on the Mac, not icloud.com. If any moderator can move it, that would be great.

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