Setting permission using java code

hi all i am writing a code to upload file from the users to the server. i can write the files to the server but after that i cannot change it's permission to read and execute by all. only the server can read and execute it. i talked about this problem with the systems admin and he suggested i include some sort of java code to set the permission to everyone. can any one suggest me what sort of code is helpful in this regard? i am absolutely helpless about this. any help will be appreciated.

Depends on what you mean. If you want to programatically include/exclude a folder in a, say, File Open dialog that your program displays, then yes, absolutely. If you're asking whether can set an operating system security flag on a folder, then the answer is probably not (at least not without resorting to native code), and it will almost certainly not be portable across different operating systems.

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