public class CanReadFileFilter extends AbstractFileFilter implements java.io.Serializable
Files 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 and 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
|
private static long |
serialVersionUID |
| Modifier | Constructor and Description |
|---|---|
protected |
CanReadFileFilter()
Restrictive consructor.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
accept(java.io.File file)
Checks to see if the file can be read.
|
accept, toStringprivate static final long serialVersionUID
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.FileFilteraccept in interface IOFileFilteraccept in class AbstractFileFilterfile - the File to check.true if the file can be
read, otherwise false.Copyright (c) 2002-2016 Apache Software Foundation