Re: How to identify File encoding in Java?

"Oliver Wong" <>
Tue, 17 Apr 2007 18:09:58 -0400
"Perma" <> wrote in message

I have a Java program which polls a directory for incoming files
(zipped and text).
When a new file comes, I read it and post it's outcome.

Here I have some encoding problems. The text files are usually UTF-8,
so I hard-code the encoding to UTF-8:

Code extract:
// trying to read the file "myFile"
FileInputStream fi = new FileInputStream(myFile);
InputStreamReader ir = new InputStreamReader(fi, "UTF8"); // hardcoded
UTF-8, how can I do this dynamically?

I was expecting the zipped files to be UTF-8 as well, but it turned
out not to be, so I get an:
MalformedInputException at[BII[CII)I(ByteToCharUTF8

So I have to handle the two separately and it troubles my code.

I guess there's a smart way of doing this.
Hope someone can give me some hint on this! :-)

    Maybe I'm misunderstanding something, but zip files are NOT text files
encoded via the UTF-8 encoding. In fact, they're not text files at all,
but binary files. Thus the question of "which encoding?" never has a
chance to come up at all.

    - Oliver

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