Question

Java : How to determine the correct charset encoding of a stream

i want to get the file encoding type runtime for pertiqular file.

System.getProperties("file.encoding");

the above code display the same encoding type for all input file.

Answer 1

See Marcelos comment – there are some libraries you can use to guess the encoding of a file, but you can never determine it for sure, unless you know before-hand. There is no “standard” information in arbitrary text-files to indicate which encoding has been used to write it. Specific file formats may include encoding information, but that would be in some proprietary way, specific to that file format.