Odd characters in filename

[Joachim Dagerot]

I unpacked a rar file and find myself standing with a lot of files
with strange characters like accents etc.

When I do tab for completion the characters 'escapes' to for example
"\264" (backward slash).

I tried to write a small rename method in java but neither the
File.list() or by providing the filename in args[0] makes java
understand these odd characters.

How can I rename these files in a not too manual way?