public final class

FileNameExtensionFilter

extends FileFilter
java.lang.Object
   ↳ javax.swing.filechooser.FileFilter
     ↳ javax.swing.filechooser.FileNameExtensionFilter

Class Overview

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

Summary

Public Constructors
FileNameExtensionFilter(String description, String... extensions)
Creates a FileNameExtensionFilter with the specified description and file name extensions.
Public Methods
boolean accept(File f)
Tests the specified file, returning true if the file is accepted, false otherwise.
String getDescription()
The description of this filter.
String[] getExtensions()
Returns the set of file name extensions files are tested against.
String toString()
Returns a string representation of the FileNameExtensionFilter.
[Expand]
Inherited Methods
From class javax.swing.filechooser.FileFilter
From class java.lang.Object

Public Constructors

public FileNameExtensionFilter (String description, String... 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 null
extensions the accepted file name extensions
Throws
IllegalArgumentException if extensions is null, empty, contains null, or contains an empty string
See Also

Public Methods

public boolean accept (File f)

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.

Parameters
f the File to test
Returns
  • true if the file is to be accepted, false otherwise

public String getDescription ()

The description of this filter. For example: "JPG and GIF Images."

Returns
  • the description of this filter

public String[] getExtensions ()

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

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

public String toString ()

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 FileNameExtensionFilter