FileFilter (Java Platform SE 8 )

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface FileFilter
```
A filter for abstract pathnames.
Instances of this interface may be passed to the listFiles(FileFilter) method of the File class.

Since:

1.2

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`accept(File pathname)`	Tests whether or not the specified abstract pathname should be included in a pathname list.

- Method Detail
  - accept
```
boolean accept(File pathname)
```
    Tests whether or not the specified abstract pathname should be included in a pathname list.
    
    Parameters:
    
    pathname - The abstract pathname to be tested
    
    Returns:
    
    true if and only if pathname should be included

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2025, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

Interface FileFilter

Method Summary

Method Detail

accept