reading mainframe file

[agjoshi]

How to read the datafile using java with the data written using mainframe?
Mainframe consists of some compressed characters need to be uncompress using Java & extract original text.
How to do that?

[sicarie]

I'm guessing you're on the same system, otherwise you need to connect to where the file is, use whatever decompression scheme that was used to compress it, and then read it. Can't really give you any more information without knowing the scheme and setup....

[BigDaddyLH]

How to read the datafile using java with the data written using mainframe?
Mainframe consists of some compressed characters need to be uncompress using Java & extract original text.
How to do that?

Please define "compressed characters". Are you alluding to something like ZIP compression or are you alluding to something like UTF-8? You need to be clearer.

Here is a tutorial on basic I/O: http://java.sun.com/docs/books/tutor.../io/index.html