org.apache.commons.io.filefilter
public class EmptyFileFilter extends AbstractFileFilter implements Serializable
If the File
is a directory it checks that
it contains no files.
Example, showing how to print out a list of the current directory's empty files/directories:
File dir = new File("."); String[] files = dir.list( EmptyFileFilter.EMPTY ); for ( int i = 0; i < files.length; i++ ) { System.out.println(files[i]); }
Example, showing how to print out a list of the current directory's non-empty files/directories:
File dir = new File("."); String[] files = dir.list( EmptyFileFilter.NOT_EMPTY ); for ( int i = 0; i < files.length; i++ ) { System.out.println(files[i]); }
Since: Commons IO 1.3
Version: $Revision: 587916 $
Field Summary | |
---|---|
static IOFileFilter | EMPTY Singleton instance of empty filter |
static IOFileFilter | NOT_EMPTY Singleton instance of not-empty filter |
Constructor Summary | |
---|---|
protected | EmptyFileFilter()
Restrictive consructor. |
Method Summary | |
---|---|
boolean | accept(File file)
Checks to see if the file is empty.
|
Parameters: file the file or directory to check
Returns: true
if the file or directory
is empty, otherwise false
.