Re: List of files with given extension in a directory

From:

Hakan <H.L@softhome.net>

Newsgroups:

comp.lang.java.programmer

Date:

Tue, 18 Aug 2009 14:48:10 +0200

Message-ID:

<1250599690.2@user.newsoffice.de>

I would like for the program to find all files with a given extension

in a user chosen directory. The user chooses a directory with a
JFileChooser or something like that and all entries of a certain file
type in there are showed in a drop down list. It seems to be
straightforward to me.

First you define a FilenameFilter :

import java.io.File;
import java.io.FilenameFilter;

public class ExtensionFilter implements FilenameFilter {
protected String pattern;
public Filter (String str) {
pattern = str;
}

public boolean accept (File dir, String name) {
return name.toLowerCase().endsWith(pattern.toLowerCase());
}
}

Thank you for all your help with my question. The FilenameFilter
implementation does what I want, but my boss wants the application to
optionally scan subdirectories of the starting directory as well. The
task is to find all files with an arbitrary extension in this subtree.
How do I extend the code to do that? Thanks in advance.

Regards,

H?kan Lane

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