Java Utililty Methods File Delete nio

List of utility methods to do File Delete nio

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Description

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

Method

voiddeleteAll(File f)
delete All 
Path start = FileSystems.getDefault().getPath(f.getAbsolutePath());
try {
    Files.walkFileTree(start, 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 e) throws IOException {
            if (e == null) {
                Files.delete(dir);
                return FileVisitResult.CONTINUE;
            } else {
                throw e;
    });
} catch (IOException e) {
    e.printStackTrace();
voiddeleteAll(File file)
Deletes all files and directory specified recursively including passed file itself. 
if (file == null || !file.exists()) {
    return;
if (file.isDirectory()) {
    for (File f : file.listFiles()) {
        deleteAll(f);
if (!file.isDirectory()) {
    if (!file.setWritable(true, false)) {
        throw new IOException(String.format("Failed to change file to writeable [%s].", file));
Files.delete(file.toPath());
voiddeleteEntriesFromZip(File zipFile, List entriesToDelete)
Use this to delete some entries from a zip file. 
byte[] buffer = new byte[1024 * 32];
File newZipFile = new File(zipFile.getParentFile(), zipFile.getName() + ".tmp");
if (newZipFile.exists()) {
    newZipFile.delete();
ZipOutputStream zos = null;
ZipInputStream zis = null;
try {
...
voiddeleteFile(File f)
Helper function used to delete a file. 
deleteFile(f, false);
voiddeleteFile(File f)
delete File 
if (!f.exists())
    return;
boolean canUseNio = true;
try {
    Class.forName("java.nio.file.Path");
} catch (ClassNotFoundException e) {
    canUseNio = false;
if (canUseNio) {
    java.nio.file.Path fp = f.toPath();
    java.nio.file.Files.delete(fp);
} else if (!f.delete())
    throw new IOException("Failed to delete file: " + f.getName());
booleandeleteFile(String fileName)
Deletes the given file 
Path p = Paths.get(fileName);
try {
    return Files.deleteIfExists(p);
} catch (IOException e) {
    e.printStackTrace();
return false;
voiddeleteFile(String filename)
delete File 
try {
    Path path = FileSystems.getDefault().getPath(filename);
    Files.delete(path);
} catch (IOException e) {
    e.printStackTrace();
voiddeleteFileCascade(String directory)
Delete a folder with all the sub files. 
deleteFileCascade(new File(directory));
booleandeleteFileRescursive(File file)
delete File Rescursive 
return deleteFileRescursive(file, true);
voiddeleteFiles(File directory, String affix)
Delete all the files and sub directories which matches given prefix in a given directory. 
if (!directory.isDirectory()) {
    return;
for (File f : directory.listFiles()) {
    if (f.getName().startsWith(affix) || f.getName().endsWith(affix)) {
        deleteDirectory(f);