In Java if given a directory, how to get free disk space in that directory?

thanks

The directory itself is not taking space (It actually does but in most cases you can neglect its size). It is files that it has that take space. Also, the more files you create the more space gets allocates from the media that holds them. And the last, the media (Hard Drive, Floppy, or other) has free space, not directory. That is how all OS's that I know about work.

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How to get free disk space in linux Using JAVA program ?

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.
But how to check that Using Java program ??
can u give me one sample example ? i will do it if u can do some for me
thanks
give me possible solutions...

Using the Runtime class you can execute any linux command. Check it out.

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...

How to get available disk space for a disk in the system ?

hi all,
I need to figure out the available disk space for a particular disk before I can write my file to a directory in the disk. I do this to avoid unsufficient disk space problem in my program. May I know how can I do this in Java ? I look at the API function for java.io.File class but there isn't any function to check disk space. I would appreciate any help from fellow Java developers. Thanks a million.
regards,
tuck meng

You cannot do this in purely platform independent way.
You can use System.exec to run native OS utilities like df and parse the output, but then you have to knwo which platform your program is running on, or build in some automatic detection of OS and have corresponding native calls for each likely one.
BTW. even if you get a number of free bytes on disk that's larger than the size of the file you want to write this is no guarantee that there will be enough diskspace for your file, because another process might write to the disk in the meantime. So you will have to do proper error handling and recover gracefully from the disk full sitution no matter what.

My macbook air hd is full after installing windows, how I could free disk space?

My macbook air only has 25GB left of HD after I did install parallels and windows to use the machine at work, how I could release some space in the HD without uninstall windows and parallels?

Hi Laiwin,
What did you delete? Did you by any chance delete anything out of the /Library or /System folder off the root level of the drive? Probably the best option is startup the computer and then immediately hit Command + V. This will boot into Verbos mode. When does the boot process stop? What does it say? This will help tell us where it is failing in the boot process.

How to get more disk space

I exported a project out of FCP 7 as a Quicktime movie. I wanted to import it into FCP X to do some color correction and add some graphics, etc. Before exporting out of 7 we had to delete some unused clips to free up about 60 Gig of space on the hard drive because we were getting "Out of disc space." The export went fine, but now as we try to import into FCP X we are suddenly out of disc space again and the movie won't import. Any suggestions to free up disc space in X so we can import the file? We are working on an iMac with a huge hard drive. It's only about 15 months old (the iMac).

Most of what is eating up your hard drive are render files. Every time you make a change in your storyline, more render files are created. Plus, FCPX has almost unlimited undo, so... it accumulates render files.
You can delete unused render files at any time by selecting a project and selecting File > Delete Project Render Files, or in newer versions of FCPX, you can select an event (or with the currently active event) and select File > Delete Event Render Files.
You can select the All Render Files option for projects that have been completed (or currently on hold.)
You can control the accumulation of render files by going into Preferences > Playback > Rendering and turning off Background Render. Use Control-R to render current selections, or Control-Shift-R to render all manually.

How do i free disk space on my macbook air

Is there a simple way to find and delete duplicated files and folders.I need to free up much needed disk space,
or there an app that will do it for me ?

Well, iTunes is a start. It duplicates your songs. (at least with me) try looking for the duplicates and deleting them. Second, iPhoto is the DEVIL!
I have a MBP mid-2010 with 250g hard drive, and i freed 30g of space cleaning out duplicate pics that iPhoto makes. There is another 10 I have an option of cleaning, but those are very important to me, so I chose not to.
That's about it.
Btw, check your applications folder and delete anything uneccesary.

How to find the amount of free disk space on my pc....... in java of course

how to find the amount of free disk space on my pc

http://onesearch.sun.com/search/onesearch/index.jsp?qt=free+disk+space&subCat=siteforumid%3Ajava31&site=dev&dftab=siteforumid%3Ajava31&chooseCat=javaall&col=developer-forums

I'm losing 2GB of free disk space every day. How can I prevent this?

Every day this week I notice that I lose about 2GB of free disk space on my MacBook Pro. I'm now down to 20GB. When I started the week, I had over 30GB. I haven't installed any new programs of signficance. I store my large documents (photos, music, movies) on an external hard disk. While the MBP is not giving me problems, performance-wise, I'm concerned about the constant loss of free space.
I checked the size of my sleepimage and swapfile in /private/var/vm and they appear to be normal. The sleepimage size remains constant at 4.29GB and there is only one swapfile that is using 67.1 megs.
I don't seem retain disk space even after clearing the User and System caches, repairing permissions, and restarting my computer.
I checked my recent Console messages and here is a short snippet:
5/13/10 9:49:04 AM com.apple.launchd.peruser.514[285] (com.shirtpocket.backuponmount) Throttling respawn: Will start in 9 seconds
5/13/10 9:49:13 AM osascript[3781] Error loading /Library/ScriptingAdditions/Adobe Unit Types.osax/Contents/MacOS/Adobe Unit Types: dlopen(/Library/ScriptingAdditions/Adobe Unit Types.osax/Contents/MacOS/Adobe Unit Types, 262): no suitable image found. Did find:
/Library/ScriptingAdditions/Adobe Unit Types.osax/Contents/MacOS/Adobe Unit Types: no matching architecture in universal wrapper
5/13/10 9:49:13 AM com.shirtpocket.backuponmount[3781] osascript: OpenScripting.framework - scripting addition "/Library/ScriptingAdditions/Adobe Unit Types.osax" declares no loadable handlers.
5/13/10 10:31:20 AM PreferenceSyncClient[4405] Preference plist was NOT a dictionary.
I reviewed my Login Items and there doesn't seem to be anything out of the ordinary there that could be chewing up disk space.
GrowlHelperApp
AdobeResourceSynchronizer
textexpanderd
iTunesHelper
Rogue Amoeba Schedule Helper
VMware Fusion Helper
Dropbox
Lastly, I did a search in Finder using the following criteria and came up empty:
Kind is Any
File visibility = Visible or Invisible
Last modified date is within last 5 days
Size is greater than 10 MB

Yes, I'm running TechTool Pro 5 and it definitely looks like the Data Recovery feature is causing the disk space to be lost. I see lots of recent dates under the Directory Backups list. Looking at the Help guide, I haven't yet found how to turn this feature off.

Determining free disk space in a platform independent "java-like" way?

how can i determine free disk space in a platform independent "java-like" way?

Search the forum "free disk space".

I just purchase an IPhone5C to upgrade from my IPhone4, but I do not know how to get all of my photos that were on ICloud on my Photo Stream (875 photos), on to my new phone. I thought that since my 5C can see Icloud that all photos would be there...

I just purchase an IPhone5C to upgrade from my IPhone4, but I do not know how to get all of my photos that were on ICloud on my Photo Stream (875 photos), on to my new phone. I thought that since my 5C can see Icloud that all photos would be there... Can someone help me get the pics from my Iphone4 to the 5C?

Photostream in the cloud only keeps photos from the last 30 days (subject to a 1,000 photo limit). When photostream syncs the photos to your device they will stay there (subject to a 1,000 photo limit) until deleted, which means you may well have more photos in your photostream album on your device than there are in photostream in the cloud.
The consequence of this is that if you turn photostream off and on again on your device (or enable it for the first time), it will only be populated with photos from the last 30 days, which may not be all the photos that were previously in the photostream album on that device.

How can I free up space on my iphone without connecting to itunes?

How can I free up space on my iphone (by posibbly deleting some music) without connecting to my mac itunes? I'm travelling abroad for some time so can't access my itunes account on my mac at home and the iphone is full. I thought I'd left enought room for plenty of new apps, but alas no. So I need more room for more apps. We have my partners PC laptop with her itunes loaded if thats any use. I've deleted and backed up all my iphone photos already. Thanks.

Claiming that it can be done, but not telling him how is not all that helpful. We were dying for you to share the steps that he must take.
http://www.cultofmac.com/99990/ios-5-allows-users-to-delete-music-directly-from- iphoneipad/
The process is just like deleting an unwanted email in your inbox. Simply find the track(s) you don’t want on your iOS 5 device anymore, slide your finger over the track listing to the left or the right to reveal a hidden “delete” button, and then select “delete” and the track is gone. Unfortunately there’s no mass delete option, so those Backstreet Boys songs are gonna have to be deleted one at a time.

I have previously viewed movies and TV Shows on my IPHONE that I want to delete and free up space so that I can buy new movies/TV show to watch. How do I get them off my IPHONE and my ITUNES account?

I have previously viewed movies and TV Shows on my IPHONE that I want to delete and free up space so that I can buy new movies/TV show to watch. How do I get them off my IPHONE and my ITUNES account?

Hey RR6705,
If you would like to delete previously purchased content off of your iPhone, you may find the steps outlined in the following article helpful:
How to delete content you've downloaded from the iTunes Store, App Store, iBooks Store, or Mac App Store - Apple Support
Cheers,
- Brenden

DATA TRANSFER - How to get a SINGLE SPACE in downloaded txt file from UNIX?

Hi Experts,
Am sending data from SAP to UNIX/ Application server and text file on desk top as well.
So, I am keeping a single character just SPACE at the END of each record.
Then, When I see the downloaded text file, I found a SINGLE SPACE at the end of each record, fine.
Then, by using CG3Y t code, I downloaded the UNIX file to my desk top.
But, When I see this UNIX downloaded file from UNIX, I did NOT find any SPACE at the end of each record!!!
Am doing every thing same in both cases.
So,
1 - Why its happening in case of UNIX file?
2 - How to get a SINGLE SPACE at the END in the downloaded file from UNIX?
thanq

Its there, I am talking abut this -
OPEN DATASET - linefeed
Syntax
... WITH { NATIVE
         | SMART
         | UNIX
         | WINDOWS } LINEFEED ... .
Alternatives:
1. ... WITH NATIVE LINEFEED
2. ... WITH SMART LINEFEED
3. ... WITH UNIX LINEFEED
4. ... WITH WINDOWS LINEFEED
Effect
: These additions determine which line end marker is used for text files or legacy text files. If these additions are used, the profile parameter abap/NTfmode is ignored. Simultaneous specification of the values "UNIX" or "NT" in the addition TYPE is not permitted.
If these additions are not used, the line end marker is determined as follows, depending on the operating system of the current application server:
The line end marker for Unix is "LF". Under Unix, OS390 and OS400, only "LF" is used for reading and writing.
The line end marker for MS Windows is "CRLF". Under MS Windows, however, the values of the profile parameter abap/NTfmode can also be used to set whether new files are handled according to Unix conventions or Windows conventions. If the profile parameter has the value "b", the Unix line end marker "LF" is used. If the profile parameter has the value "t" or is initial, the Windows line end marker "CRLF" is used. The setting using the profile parameter can be overridden with the addition TYPE and the value "UNIX" or "NT". If an existing file is opened without the addition TYPE, this is searched for the first line end marker ("LF" or "CRLF"), and this is used for the whole file. If no line end marker is found, the profile parameter is used. This applies particularly if an existing file is completely overwritten with FOR OUTPUT.
If an addition WITH NATIVE|SMART|UNIX|WINDOWS LINEFEED is used, this setting can be changed for the open file using the statement SET DATASET. If neither of the additions is used, the line end marker also cannot be changed using SET DATASET.
Notes
: Without the use of an addition WITH LINEFEED, the line end marker is dependent on diverse implicit factors such as the operating system of the application server, a profile parameter, and line end markings that are already used. For this reason, the explicit use of WITH LINEFEED is recommended, which renders the use of the addition TYPE for setting the line end marker obsolete.
The line end marker that is currently used can be determined for every open file using GET DATASET.
Alternative 1
... WITH NATIVE LINEFEED
Effect
: This addition defines the line end marker independently of the access type according to the operating system of the application server, i.e. "LF" for Unix OS390 or OS400, and "CRLF" for MS Windows.
The line end marker is interpreted according to the current codepage. If a code page is explicitly specified using the addition CODE PAGE, the characters of the line end marker must exist be available or be written in accordance with this code page.
Note
: The addition WITH NATIVE LINEFEED is intended for editing files on an application server that can also be accessed by other means. The addition receives the appropriate line end marker without the program needing to know the operating system.
Alternative 2
... WITH SMART LINEFEED
Effect
: This addition depends on the access type:
In files that are opened for reading using FOR INPUT, both "LF" and "CRLF are interpreted as a line end marker. When opening an EBCDIC file with the addition CODEPAGE, in addition to "LF", "CRLF", and the EBCDIC character strings, the corresponding ASCII character strings are also recognized. In addition, the EBCDIC character "NL" (line separator) is also interpreted as a line end marker.
In files opened for appending or changing with FOR APPENDING or FOR UPDATE, the program searches for a line end marker that is already used in the file. In this process, first the end of the file is identified. If no line end marker is found there, a certain number of characters at the beginning is analyzed. If a line end marker is found, this is used when writing to the file. This is also affected by the addition CODE PAGE. For example, ASCII line end markers are recognized and used in a file opened with EBCDIC, but not the other way round. If no line end marker is found or no search is possible (for example, if the file is opened with the addition FILTER), the line end marker is determined according to the operating system of the application server, as with the addition WITH NATIVE LINEFEED.
In files opened for writing using FOR OUTPUT, the line end marker is determined according the operating system of the application server, as with the addition WITH NATIVE LINEFEED.
Note
: The addition WITH SMART LINEFEED is intended for the generic editing of files in heterogeneous environments. The line end marker is recognized and set for different formats. The use of this addition is the best solution for most application cases.
Alternative 3
... WITH UNIX LINEFEED
Effect
: The line end marker is set to "LF" regardless of the access type and operating system of the application server.
The line end marker is interpreted according to the current code page. If a code page is specified explicitly using the addition CODE PAGE, the characters of the line end marker must be available or be written according to this code page.
Note
: The addition WITH UNIX LINEFEED is intended for editing Unix files in which the specific line end markers are to be retained, even if the operating system of the current application server is MS Windows.
Alternative 4
... WITH WINDOWS LINEFEED
Effect
: The line end marker is set to "CRLF" regardless of the access type and operating system of the application server.
The line end marker is interpreted according to the current code page. If a code page is specified explicitly using the addition CODE PAGE, the characters of the line end marker must be available and be written according to this code page.
Note
: The addition WITH WINDOWS LINEFEED is intended for use with MS Windows files in which the specific line end marker is to be retained, even if the operating system of the current application server is Unix, OS390 or OS400.

DATA TRANSFER - How to get a SINGLE SPACE in the downloaded file from UNIX?

Hi Experts,
Am sending data from SAP to UNIX/ Application server and text file on desk top as well.
So, I am keeping a single character just SPACE at the END of each record.
Then, When I see the downloaded text file, I found a SINGLE SPACE at the end of each record, fine.
Then, by using CG3Y t code, I downloaded the UNIX file to my desk top.
But, When I see this UNIX downloaded file from UNIX, I did NOT find any SPACE at the end of each record!!!
Am doing every thing same in both cases.
So,
1 - Why its happening in case of UNIX file?
2 - How to get a SINGLE SPACE at the END in the downloaded file from UNIX?
thanq

Hi,
I don't know if this works:
perform SET_TRAIL_BLANKS(saplgrap) using 'X'.
perform SET_FIXLEN(saplgrap) using '0' '060'. "put length of your line from-to
... download ...
It will put space at the end of your line, according to the length.
Hope it works,
Chang

In Java if given a directory, how to get free disk space in that directory?

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