[my3best]

how to get all mp3 files in my windows system including (c:,d:,e:,ect) using jtree in java.
im just getting all directories & files in specific directories but i know wish to get all mp3 files in my all system drives

[blackcompe]

How about recursively searching from the root of each drive?

[grimpirate]

As blackcompe suggested, retrieve all your root directories:

http://docs.oracle.c...al/io/dirs.html

Then recurse through them filtering filenames. Though I imagine this will probably take a large sum of time.

[cfoley]

It would take a long time to scan the whole file system upfront. You could make the application appear a lot faster if you only scan a directory when you expand a node in the tree. You could make it seem lightning fast if you preload the contents of all the visible folders in the background.

[pbl]

You have to aspect of a problem and you seems to have incorrectly merged them

A JTree is just a fancy GUI component to display data
Your Data is all the .MP3 files below few root directories

You can have 2 different approachs to this problem:
- scan all the directories for the .MP3 files, save that data in a data structure and then fill your JTree based oon that data structure
- display in the JTree the root directories and then start the search when one of them is clicked dinamically expanding them when required