How to find Free disk space using Java program ?

Hi friends,
I need to find out the Free Hard disk Space to alert the user and send them mail if hard drive is about 85% full.
i am developing databackup program in which i have to check it , if hard drive is fulled with 85% or remain left space is less email sent to user to notify and delete older backups.
give me solution using java program...
please
Help me i need it in recent...

Hi friends,
I need to find out the Free Hard disk Space to alert
the user and send them mail if hard drive is about
85% full.
i am developing databackup program in which i have to
check it , if hard drive is fulled with 85% or remain
left space is less email sent to user to notify and
delete older backups.
give me solution using java program...
please
Help me i need it in recent...

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Reading your question a bit more in detail, I doubt whether you are using Win32 API GetDiskFreeSpace function (for which my previous post is the solution) of Programmer's Toolbox GetDiskSpace function.
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Hi,
I am new to such adavance topics.. like JNI
I have to check linux system free disk space , if space is more than 80% it should email to user.
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column DATA_SIZE_VALUE_k format a10
column SOFT_QUOTA_VALUE_K format a10
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tuscan wrote:
do i get your answer right:
this means the Finder is reporting an amount of free space one can never use?
its number includes those bytes that are unused in used disk blocks?
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For information about the Other category in the Storage display, see this support article.
Empty the Trash if you haven't already done so. If you use iPhoto, empty its internal Trash first:
iPhoto ▹ Empty Trash
Then reboot. That will temporarily free up some space. Do the same in other applications, such as Aperture, that have an internal Trash feature.
According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation. You also need enough space left over to allow for growth of your data. There is little or no performance advantage to having more available space than the minimum Apple recommends. Available storage space that you'll never use is wasted space.
If you're using Time Machine to back up a portable Mac, some of the free space will be used to make local snapshots, which are backup copies of files you've recently deleted. The space occupied by local snapshots is reported as available by the Finder, and should be considered as such. In the Storage display of System Information, local snapshots are shown as Backups. The snapshots are automatically deleted when they expire or when free space falls below a certain level. You ordinarily don't need to, and should not, delete local snapshots yourself.
See this support article for some simple ways to free up storage space.
You can more effectively use a tool such as OmniDiskSweeper (ODS) to explore your volume and find out what's taking up the space. You can also delete files with it, but don't do that unless you're sure that you know what you're deleting and that all data is safely backed up. That means you have multiple backups, not just one.
Deleting files inside an iPhoto or Aperture library will corrupt the library. Any changes to a photo library must be made from within the application that created it. The same goes for Mail files.
Proceed further only if the problem isn't solved by the above steps.
ODS can't see the whole filesystem when you run it just by double-clicking; it only sees files that you have permission to read. To see everything, you have to run it as root.
Back up all data now.
If you have more than one user account, make sure you're logged in as an administrator. The administrator account is the one that was created automatically when you first set up the computer.
Install ODS in the Applications folder as usual. Quit it if it's running.
Triple-click anywhere in the line of text below on this page to select it, then copy the selected text to the Clipboard by pressing the key combination command-C:
sudo /Applications/OmniDiskSweeper.app/Contents/MacOS/OmniDiskSweeper
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window (command-V). You'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning to be careful. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.
The application window will open, eventually showing all files in all folders, sorted by size with the largest at the top. It may take a few minutes for ODS to finish scanning your files.
I don't recommend that you make a habit of doing this. Don't delete anything while running ODS as root. If something needs to be deleted, make sure you know what it is and how it got there, and then delete it by other, safer, means. When in doubt, leave it alone or ask for guidance.
When you're done with ODS, quit it and also quit Terminal.

How to find Free disk space using Java program ?

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