Java Utililty Methods Directory Delete nio

List of utility methods to do Directory Delete nio

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Description

The list of methods to do Directory Delete nio are organized into topic(s).

Method

booleandeleteDirectory(Path directory)
Deletes a directory recursively 
if (directory != null) {
    try {
        Files.walkFileTree(directory, new SimpleFileVisitor<Path>() {
            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                Files.delete(file);
                return FileVisitResult.CONTINUE;
            @Override
            public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
                Files.delete(dir);
                return FileVisitResult.CONTINUE;
        });
    } catch (IOException ignored) {
        return false;
return true;
voiddeleteDirectory(Path dirToDelete)
delete Directory 
if (!Files.isDirectory(dirToDelete))
    throw new IllegalArgumentException("the path is not a directory");
Files.walkFileTree(dirToDelete, new SimpleFileVisitor<Path>() {
    @Override
    public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
        System.out.println("Deleting file: " + file);
        Files.delete(file);
        return CONTINUE;
...
voiddeleteDirectory(Path path)
delete Directory 
Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
    @Override
    public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
        Files.delete(file);
        return FileVisitResult.CONTINUE;
    @Override
    public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
...
voiddeleteDirectory(String path)
delete Directory 
File file = new File(path);
File[] contents = file.listFiles();
if (contents != null) {
    for (File f : contents) {
        f.delete();
file.delete();
...
voiddeleteDirectoryAndContents(String dir)
delete Directory And Contents 
deleteDirectoryAndContents(Paths.get(dir));
voiddeleteDirectoryRecursively(Path dir)
Delete a directory recursively. 
if (!Files.exists(dir)) {
    return;
Files.walkFileTree(dir, new SimpleFileVisitor<Path>() {
    @Override
    public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
        Files.delete(file);
        return FileVisitResult.CONTINUE;
...
voiddeleteDirectoryRecursively(Path path)
delete Directory Recursively 
Files.walkFileTree(path, new FileVisitor<Path>() {
    @Override
    public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
        Files.delete(dir);
        return FileVisitResult.CONTINUE;
    @Override
    public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
...
voiddeleteDirectorySelectively(Path path, Predicate predicate)
delete Directory Selectively 
Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
    @Override
    public FileVisitResult visitFile(Path file, BasicFileAttributes attributes) throws IOException {
        if (predicate.test(file)) {
            Files.delete(file);
        return FileVisitResult.CONTINUE;
    @Override
    public FileVisitResult postVisitDirectory(Path directory, IOException ex) throws IOException {
        if (ex != null) {
            return FileVisitResult.TERMINATE;
        if (predicate.test(directory)) {
            Files.delete(directory);
        return FileVisitResult.CONTINUE;
});
voiddeleteDirIfEmpty(Path dir)
delete Dir If Empty 
if (Files.isDirectory(dir)) {
    try {
        if (!Files.list(dir).findFirst().isPresent())
            Files.deleteIfExists(dir);
    } catch (DirectoryNotEmptyException | NoSuchFileException ignored) {
voiddeleteDirIfExists(Path dirPath)
delete Dir If Exists 
if (Files.exists(dirPath)) {
    deleteDir(dirPath);