See instead How do I iterate through the files in a directory in Java? Add a comment. Active Oldest Votes. If you have the directory name in myDirectoryPath , import java. Improve this answer. Mike Samuel Mike Samuel k 30 30 gold badges silver badges bronze badges. Javado says in listFiles : "Pathnames denoting the directory itself and the directory's parent directory are not included in the result. Vivit 2, 2 2 gold badges 27 27 silver badges 41 41 bronze badges.
In the most recent version 2. Amol Katdare Amol Katdare 6, 2 2 gold badges 31 31 silver badges 36 36 bronze badges. Although it is a fine library. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses.
Featured on Meta. This method returns a String array which contains the names of all the files and directories in the path represented by the current File object. This method returns an array holding the objects abstract paths of all the files and directories in the path represented by the current File object. As suggested in its signature, this method accepts a FilenameFilter object and returns a String array containing the names of all the files and directories in the path represented by the current File object.
But the retuned array contains the filenames which are filtered based on the specified filter. Using this method, you can get the filtered names of the files and directories in a particular folder.
Like the original example, the user invokes a file chooser with the push of a button. Here is a picture of the file chooser:. As the figure shows, this file chooser has been customized for a special task Attach , provides a user-choosable file filter Just Images , uses a special file view for image files, and has an accessory component that displays a thumbnail sketch of the currently selected image file.
The remainder of this section shows you the code that creates and customizes this file chooser. See the example index for links to all the files required by this example. As you have seen, the JFileChooser class provides the showOpenDialog method for displaying an open dialog and the showSaveDialog method for displaying a save dialog. The class has another method, showDialog , for displaying a file chooser for a custom task in a dialog.
In the Java look and feel, the only difference between this dialog and the other file chooser dialogs is the title on the dialog window and the label on the approve button. Here is the code from FileChooserDemo2 that brings up the file chooser dialog for the Attach task:. The first argument to the showDialog method is the parent component for the dialog. The second argument is a String object that provides both the title for the dialog window and the label for the approve button.
Once again, the file chooser doesn't do anything with the selected file. The program is responsible for implementing the custom task for which the file chooser was created. By default, a file chooser displays all of the files and directories that it detects, except for hidden files. A program can apply one or more file filters to a file chooser so that the chooser shows only some files.
The file chooser calls the filter's accept method for each file to determine whether it should be displayed. A file filter accepts or rejects a file based on criteria such as file type, size, ownership, and so on. Filters affect the list of files displayed by the file chooser. The user can enter the name of any file even if it is not displayed.
JFileChooser supports three different kinds of filtering. The filters are checked in the order listed here. For example, an application-controlled filter sees only those files accepted by the built-in filtering. The preceding code sample uses the getExtension method and several string constants from Utils. In the Java look and feel, the chooser's list shows each file's name and displays a small icon that represents whether the file is a true file or a directory.
You can customize this file view by creating a custom subclass of FileView and using an instance of the class as an argument to the setFileView method. The example uses an instance of a custom class, implemented in ImageFileView. The ImageFileView class shows a different icon for each type of image accepted by the image filter described previously. The customized file chooser in FileChooserDemo2 has an accessory component.
Otherwise, the accessory component is empty. Aside from a previewer, probably the most common use for the accessory component is a panel with more controls on it such as check boxes that toggle between features. The example calls the setAccessory method to establish an instance of the ImagePreview class, implemented in ImagePreview.
Any object that inherits from the JComponent class can be an accessory component. The component should have a preferred size that looks good in the file chooser. The file chooser fires a property change event when the user selects an item in the list.
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