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Chapter 11 The java.io Package |
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FilenameFilter
Name
FilenameFilterSynopsis
- Interface Name:
-
java.io.FilenameFilter
- Super-interface:
-
None
- Immediate Sub-interfaces:
-
None
- Implemented by:
-
None
- Availability:
-
JDK 1.0 or later
Description
The FilenameFilter interface is implemented by a class that wants to filter the filenames that should be included in a list of filenames. For example, the list() method of the File class can take a FilenameFilter object to filter the filenames that are listed. The java.awt.FileDialog class also uses a FilenameFilter to limit the choices that are presented to the user.
Interface Declaration
public abstract interface java.io.FilenameFilter {
// Methods
public abstract boolean accept(File dir, String name);
}
Methods
accept
public abstract boolean accept(File dir, String name)
- Parameters
-
- dir
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The directory that contains the file.
- name
-
The name of the file.
- dir
- Returns
-
true if the file should be shown; false otherwise.
- Description
-
This method returns a boolean value that indicates whether or not a file should be included in a list of filenames. The method should return true if a file should be included; otherwise it should return false. A simple filter might return true for filenames with a certain extension, like .java. A more complex filter could check the directory name, the file's readability, and last modification time, for example.
See Also
File
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| FileInputStream |  |
FileNotFoundException |
