Java Utililty Methods Directory Clear

List of utility methods to do Directory Clear

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Description

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

Method

voidcleanDirectory(File dir)
clean Directory 
File[] files = dir.listFiles();
if (files != null) {
    for (File f : files) {
        if (f.isFile()) {
            boolean deleted = f.delete();
            if (!deleted) {
                throw new IOException("file:" + f.getAbsolutePath() + " not deleted");
        } else {
            deleteDirectory(f);
voidcleanDirectory(File dir)
clean Directory 
if (dir.exists() && dir.isDirectory()) {
    for (File f : dir.listFiles()) {
        deleteRecursively(f);
voidcleanDirectory(File dir)
Cleans the content of the specified directory recursively. 
File[] files = dir.listFiles();
if (files != null && files.length > 0) {
    for (File file : files) {
        delete(file);
booleancleanDirectory(File dir)
clean Directory 
if (!dir.isDirectory())
    return false;
for (File file : dir.listFiles()) {
    if (!deleteRecursive(file))
        return false;
return true;
FilecleanDirectory(File dir)
clean Directory 
if (dir.isFile()) {
    return null;
delete(dir);
dir.mkdirs();
return dir;
booleancleanDirectory(File dir, boolean deleteDirectory)
Cleans up the dir and deletes it. 
if (!dir.exists()) {
    return true;
if (!dir.isDirectory()) {
    throw new IllegalArgumentException(dir.getAbsolutePath() + " is not a directory");
File[] files = dir.listFiles();
if (files == null) {
...
voidcleanDirectory(File directory)
clean Directory 
if (!directory.exists()) {
    String message = directory + " does not exist";
    throw new IllegalArgumentException(message);
if (!directory.isDirectory()) {
    String message = directory + " is not a directory";
    throw new IllegalArgumentException(message);
File[] files = directory.listFiles();
for (int i = 0; i < files.length; i++) {
    File file = files[i];
    if (file.isDirectory()) {
        deleteDirectory(file);
    } else {
        file.delete();
voidcleanDirectory(File directory)
Deletes a directory (including any contents) and recreates it so that it is empty 
deleteDirectory(directory);
if (!directory.mkdirs())
    throw new IOException("Directory could not be re-created during clean: " + directory.getAbsolutePath());
voidcleanDirectory(File directory)
clean Directory 
File[] files = directory.listFiles();
if (files != null) {
    for (int i = 0; i < files.length; i++) {
        if (files[i].isDirectory()) {
            cleanDirectory(files[i]);
        files[i].delete();
voidcleanDirectory(File directory)
clean Directory 
if (!directory.exists()) {
    String message = directory + " does not exist";
    throw new IllegalArgumentException(message);
if (!directory.isDirectory()) {
    String message = directory + " is not a directory";
    throw new IllegalArgumentException(message);
File[] files = directory.listFiles();
if (files == null) { 
    throw new IOException("Failed to list contents of " + directory);
IOException exception = null;
for (File file : files) {
    try {
        delete(file);
    } catch (IOException ioe) {
        exception = ioe;
if (null != exception) {
    throw exception;