How to determine weather a file is in use?

[vijay mahendra]

hi all,

how to determine whether file is in use?

using java code.Please help me in this.
Thanks,
Vijay

[Sev Zaslavsky]

Vijay, what do you mean by "in use"? Is it the same as "cannot be written?" java.io.File class has some methods for determining the status of files.

[Neha Kathuriaa]

what are those methods?

[Joe Ess]

Are you familiar with the Java API documentation?
If you want to know if a file is being written, you can watch for a change in the file size. I'm not aware of any way to tell if a file is being read.
It is possible to do file locking with Java. Depending on your requirements, that may be an option.