Java recursive fetch all the specific suffix files in the directory __java

A very simple Java code, written in a small util:

Package com.util;
Import Java.io.File;
Import Java.io.FileFilter;

Import java.util.List; public class Fileutil {/** * provide two default file filters/public static filefilter Default_jsp_filter = NE
	W Jspfilefilter ();

	public static FileFilter Default_txt_filter = new Txtfilefilter ();
	 /** * This method would get all the target files under a specific directory * @param targetDir * @param filter * @param resultfiles * @return/public static list<file> Filtertargetfiles (File targetDir, FileFilter fil
		 ter, list<file> resultfiles) {/** * listfiles:only List the files in the "current directory", not include
		 * The files in the sub directories.
		* * file[] files = targetdir.listfiles (filter);
			for (file file:files) {if (File.isdirectory ()) {filtertargetfiles (file, filter, resultfiles);
			else {resultfiles.add (file);

	} return resultfiles; private static class Jspfilefilter implements FileFilter{@Override public boolean accept (file file) {if (File.isdirectory ()) {return true;

			String fileName = File.getname ();
		Return Filename.matches ("(? i). +jsp$");

			}} private static class Txtfilefilter implements FileFilter {@Override public boolean accept (file file) {
			if (File.isdirectory ()) {return true;

			String fileName = File.getname ();
		Return Filename.matches ("(? i). +txt$");
 }

	}

}

Test code:

Package Com.salmon;

Import Java.io.File;
Import java.util.ArrayList;
Import java.util.List;

Import Com.util.FileUtil;

public class Testreadfiles {public
	
	static void Main (string[] args) {
		
		String Targetdirpath = "D:\\zzzztestdir"; 
  file TargetDir = new File (targetdirpath);
		list<file> allfiles = new arraylist<file> ();
		Allfiles = Fileutil.filtertargetfiles (TargetDir, Fileutil.default_txt_filter, allfiles);
		After get all of the files, do the specific logic for the target files
		dothelogic (allfiles);
		
	}
	
	/**
	 * Get all of the files in the target directory, here we are could conduct any logic for the files
	 * 
	 * @param f Ileslist
	 * *
	private static void Dothelogic (List<file> fileslist) {for
		
		(File file:fileslist) {
			
			System.out.println (File.getpath ());}}