FileNameExtensionFilter JDK 1.6)

Description

publicfinal class FileNameExtensionFilter

An implementation of FileFilter that filters using a specified set of extensions.

An implementation of FileFilter that filters using a specified set of extensions. The extension for a file is the portion of the file name after the last ".". Files whose name does not contain a "." have no file name extension. File name extension comparisons are case insensitive.

The following example creates a FileNameExtensionFilter that will show jpg files:

 FileFilter filter = new FileNameExtensionFilter("JPEG file", "jpg", "jpeg");
 JFileChooser fileChooser = ...;
 fileChooser.addChoosableFileFilter(filter);

See also: FileFilter JFileChooser.setFileFilter(javax.swing.filechooser.FileFilter) JFileChooser.addChoosableFileFilter(javax.swing.filechooser.FileFilter) JFileChooser.getFileFilter()

Constructors

public FileNameExtensionFilter (String description, String extensions)

Creates a FileNameExtensionFilter with the specified description and file name extensions.

Creates a FileNameExtensionFilter with the specified
description and file name extensions. The returned FileNameExtensionFilter will accept all directories and any
file with a file name extension contained in extensions.
Parameters:
- description - textual description for the filter, may be {@code null}
- extensions - the accepted file name extensions
Throws:
- IllegalArgumentException - if extensions is {@code null}, empty, contains {@code null}, or contains an empty string
See Also: FileNameExtensionFilter.accept(java.io.File),

Methods

Hide/Show inherited methods

public boolean accept (File f) [Specified in FileFilter]

Tests the specified file, returning true if the file is accepted, false otherwise.

Tests the specified file, returning true if the file is
accepted, false otherwise. True is returned if the extension
matches one of the file name extensions of this FileFilter, or the file is a directory.
Returns: true if the file is to be accepted, false otherwise
Parameters:
- f - the {@code File} to test

public String getDescription () [Specified in FileFilter]

The description of this filter.

public String getExtensions ()

Returns the set of file name extensions files are tested against.

public String toString ()

Returns a string representation of the FileNameExtensionFilter.

Returns a string representation of the FileNameExtensionFilter.
This method is intended to be used for debugging purposes,
and the content and format of the returned string may vary
between implementations.
Returns: a string representation of this {@code FileNameExtensionFilter}