Re: List of files with given extension in a directory
John B. Matthews wrote:
I use the following recursive algorithm to traverse the directory tree.
The accept() method in your FilenameFilter is usually called by a
FileDialog instance, but there's no reason you can't call it yourself as
you visit entries.
<code>
import java.io.*;
public class ListDir {
public static void main(String args[]) {
File root;
if (args.length > 0) root = new File(args[0]);
else root = new File(System.getProperty("user.dir"));
ls(root);
}
private static void ls(File f) {
File list[] = f.listFiles();
for (File file : list) {
if (file.isDirectory()) ls(file);
else System.out.println(file);
}
}
}
</code>
I tried with an alternative version of this code. A special class
implementing Filenamefilter to search for directories, but it does not
work. Can you tell me why? The accept method just gives me false even
for directory files. I quote the code here.
public class Dirfilt implements FilenameFilter {
static String backsla="\\"; /* Windows systems delimiter*/
public boolean accept(File dir,String name)
{
String dirpath=dir.getAboslutePath();
String fpath=dirpath+backsla+name;
File newfile=new File(fpath);
return newfile.isDirectory();
}
}
Thanks in advance.
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