Accessing File property folderType

Question

I notice that the File class has a property called folderType, but I cannot see anyway to get this String at run-time. Is there a way? Edit: perhaps it's not part of File.

When I rest my mouse over file in the fileIO.open

Where do you see that? I see no indication of that in the public API docs... — Jon Skeet, Mar 20 '15 at 13:45
Please check the following link and see if it's helpful. http://stackoverflow.com/questions/16846078/jfilechoosershowsavedialog-cant-get-the-value-of-the-extension-file-chosen — Rajesh, Mar 20 '15 at 14:12

user1627167 · Answer 1 · 2015-03-20T15:14:59.927

0

There are many ways one of them is this MimetypesFileTypeMap().getContentType(file)

and i think fileio is object of class Win32ShellFolder2,this has a public function getFolderType() as mentioned here

so you can use it like this i feel

fileIO.open(file).getFolderType()

edited Mar 20 '15 at 15:14

answered Mar 20 '15 at 13:47

user1627167

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What I really want to do is determine what type of file they are opening, based upon what I saw there, it seemed I could work with folderType. – KiloJKilo Mar 20 '15 at 14:02
you can use this new MimetypesFileTypeMap().getContentType(file) – user1627167 Mar 20 '15 at 14:19
and this class "Win32ShellFolder2" has that property http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/7u40-b43/sun/awt/shell/Win32ShellFolder2.java – user1627167 Mar 20 '15 at 14:26
@KiloJKilo Edited answer see if this serves your requirement – user1627167 Mar 20 '15 at 15:09

score 0 · Answer 2 · edited May 23 '17 at 11:53

The object you have there is a Win32ShellFolder2, which is a subclass of ShellFolder, which is a subclass of java.io.File. ShellFolder defines a getter named getFolderType() which returns the folder type as a string.

So you could get the contents of the field like this:

file = fileChooser.getSelectedFile();
if (file instanceof ShellFolder) {
    ShellFolder sf = (ShellFolder)file;
    String folderType = sf.getFolderType();

ShellFolder and Win32ShellFolder2 are in the package sun.awt.shell. This package isn't part of the standard Java API, so it could change from one JVM to another or from version of the JVM to another. See With what should I replace sun.awt.shell.ShellFolder so I don't get compile warnings?.

Accessing File property folderType

2 Answers2