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  Reading a file from CD/DVD.  (Read 2788 times)
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Offline zappsweden

Junior Devvie

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« Posted 2007-05-13 11:08:01 »

The has alot of classes for reading and writing. I know I can use the path of my CD/DVD player to make java read from it but if I did not know the path, how can I detemine that during runtime i.e what path my primary cd/dvd device has?
Offline Riven

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Hand over your head.

« Reply #1 - Posted 2007-05-13 13:16:22 »

You can't.

You can make a lame guestimate though:

 // Java 6 required
for(File root: File.listRoots())
   if(!root.canWrite() && root.getFreeSpace() == 0)
      // prolly CD/DVD ?

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Offline zappsweden

Junior Devvie

Java games rock!

« Reply #2 - Posted 2007-05-13 20:35:28 »

Thanks, saves me alot of time not trying to find something that does not exist Smiley
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Offline CommanderKeith
« Reply #3 - Posted 2007-05-14 01:06:25 »

I've got a feeling that there must be a more concrete way of doing it since the native look and feel JFileChooser can give a cd-icon to cd & dvd drives.  Not sure how it does it though.  Maybe you can look into the source for the native JFileChooser and figure it out from there???


Offline blahblahblahh

JGO Coder

Medals: 1

« Reply #4 - Posted 2007-05-16 09:50:59 »

Be careful - test this. A lot of drives do weird stuff if you try to access them when they're not ready, such as blocking Windows Explorer for a minute or more whilst trying to find the disk (or Flash card etc) they think you have in there but you don't.

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Offline Abuse

JGO Ninja

Medals: 64

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« Reply #5 - Posted 2007-05-16 11:40:17 »

Just prompt the user, its the only catch-all solution.

My home pc has 1 cd drive, 1 dvd drive and 4 vitual cd drives - There is no way you can programatically determine the correct one.
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