java.io.FileFilter
, java.io.FilenameFilter
, java.io.Serializable
, IOFileFilter
public class CanReadFileFilter extends AbstractFileFilter implements java.io.Serializable
File
s that can be read.
Example, showing how to print out a list of the current directory's readable files:
File dir = new File("."); String[] files = dir.list( CanReadFileFilter.CAN_READ ); 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 un-readable files:
File dir = new File("."); String[] files = dir.list( CanReadFileFilter.CANNOT_READ ); 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 read-only files:
File dir = new File("."); String[] files = dir.list( CanReadFileFilter.READ_ONLY ); for ( int i = 0; i < files.length; i++ ) { System.out.println(files[i]); }
Modifier and Type | Field | Description |
---|---|---|
static IOFileFilter |
CAN_READ |
Singleton instance of readable filter
|
static IOFileFilter |
CANNOT_READ |
Singleton instance of not readable filter
|
static IOFileFilter |
READ_ONLY |
Singleton instance of read-only filter
|
Modifier | Constructor | Description |
---|---|---|
protected |
CanReadFileFilter() |
Restrictive consructor.
|
Modifier and Type | Method | Description |
---|---|---|
boolean |
accept(java.io.File file) |
Checks to see if the file can be read.
|
accept, toString
public static final IOFileFilter CAN_READ
public static final IOFileFilter CANNOT_READ
public static final IOFileFilter READ_ONLY
public boolean accept(java.io.File file)
accept
in interface java.io.FileFilter
accept
in interface IOFileFilter
accept
in class AbstractFileFilter
file
- the File to check.true
if the file can be
read, otherwise false
.Copyright (c) 2002-2017 Apache Software Foundation