Java Utililty Methods Directory to File List

List of utility methods to do Directory to File List

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Description

The list of methods to do Directory to File List are organized into topic(s).

Method

File[]getAllFiles(File directory, boolean hidden)
get All Files 
File[] files = directory.listFiles();
List<File> fileLst = new ArrayList<File>();
for (File file : files) {
    File[] fs = getFile(file, hidden);
    for (File f : fs) {
        fileLst.add(f);
return fileLst.toArray(new File[fileLst.size()]);
MapgetAllFiles(File directory, String rootPath)
Search through the directory and find all sub-folders, files and those in its sub-folders recursively. 
if (directory == null) {
    throw new NullPointerException("argument 'directory' cannot be null");
if (rootPath == null) {
    throw new NullPointerException("argument 'rootPath' cannot be null");
Map<String, File> returnResult = new HashMap<String, File>();
String fileRootPath = rootPath != null ? rootPath : directory.getAbsolutePath();
...
ListgetAllFiles(File inFileOrDir, boolean recurseDir)
get All Files 
final List<File> ret = new LinkedList<File>();
Stack<File> stack = new Stack<File>();
stack.add(inFileOrDir);
while (!stack.isEmpty()) {
    File f = stack.pop();
    if (f.isFile()) {
        ret.add(f);
    } else {
...
ListgetAllFiles(File input)
get All Files 
ArrayList<File> a = new ArrayList<>();
if (!input.isDirectory()) {
    a.add(input);
    return a;
for (File f : input.listFiles()) {
    a.addAll(getAllFiles(f));
return a;
voidgetAllFiles(File outputDir, List files)
get All Files 
File[] fileList = outputDir.listFiles(new FileFilter() {
    public boolean accept(File pathname) {
        if (pathname.getName().endsWith(".class") || pathname.isDirectory())
            return true;
        return false;
});
for (File file : fileList) {
...
voidgetAllFiles(File path, List fileList, boolean recursive)
Gets all files in a specified path. 
if (path.isDirectory()) {
    File[] files = path.listFiles();
    if (files != null) {
        for (int i = 0; i < files.length; i++) {
            if (files[i].isFile()) {
                fileList.add(files[i]);
            } else if (recursive) {
                getAllFiles(files[i], fileList, recursive);
...
File[]getAllFiles(File root, FileFilter fileFilter)
get All Files 
ArrayList<File> files = new ArrayList<File>();
if (root.isDirectory()) {
    collectAllFiles(root, files, fileFilter);
    File[] result = new File[files.size()];
    files.toArray(result);
    return result;
return null;
...
SetgetAllFiles(File rootDirectory, FileFilter fileFilter, boolean includeSubdirectories)
get All Files 
Set<File> fileSet = Sets.newHashSet();
return getAllFiles(rootDirectory, fileSet, fileFilter, includeSubdirectories);
voidgetAllFiles(File sourceDirectory, List fileList)
Retrieve all the files included in the source directory to be archived 
File[] files = sourceDirectory.listFiles();
if (files != null) {
    for (File file : files) {
        fileList.add(file);
        if (file.isDirectory()) {
            getAllFiles(file, fileList);
ListgetAllFiles(final String path, final String suffix, boolean recurse)
Scan the given directory for files containing the substrMatch Small case extensions '.dbf' are recognized and returned as '.DBF' 
File folder = new File(path);
File[] listOfFiles = folder.listFiles();
final List<File> list = new ArrayList<File>(20);
String upperSuffix = null;
if (suffix != null)
    upperSuffix = suffix.toUpperCase();
if (listOfFiles != null) {
    for (int i = 0; i < listOfFiles.length; i++) {
...