Java Utililty Methods Folder Delete

List of utility methods to do Folder Delete

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Description

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

Method

voidclearFolder(String folder)
clear Folder 
clearFolder(new File(folder));
booleanclearFolder(String path)
Delete all files in the directory except folders. 
boolean flag = true;
File dirFile = new File(path);
if (!dirFile.isDirectory()) {
    return flag;
File[] files = dirFile.listFiles();
for (File file : files) {
    if (file.isFile()) {
...
voidclearFolderContent(String folderName)
clear Folder Content 
File folder = new File(folderName);
File[] files = folder.listFiles();
if (files != null) { 
    for (File f : files) {
        if (f.isDirectory()) {
            clearFolderContent(f.getAbsolutePath());
        } else {
            f.delete();
...
voiddeepDelete(final File file)
deep Delete 
if (!file.exists())
    return;
if (file.isDirectory()) {
    if (file.list().length == 0) {
        file.delete();
    } else {
        final String files[] = file.list();
        for (final String temp : files) {
...
voidemptyAndDelete(File fileOrDir)
Deletes a file or directory. 
if (fileOrDir.isDirectory()) {
    File[] files = fileOrDir.listFiles();
    for (File file : files) {
        emptyAndDelete(file);
fileOrDir.delete();
voidemptyDerbyTestDirectory(final String derbyTestDirectory)
Clean out the test directory. 
File tempDirectory = new File(derbyTestDirectory);
File[] files = tempDirectory.listFiles();
if (files != null) {
    for (File file : files) {
        if (file.isDirectory()) {
            File[] subFiles = file.listFiles();
            for (File subFile : subFiles) {
                if (subFile.isDirectory()) {
...
voidemptyFile(final String urlFile)
Empty a file. 
final File file = new File(urlFile);
if (file.exists()) {
    if (!file.delete()) {
        throw new IOException("Failed to delete file : " + file);
if (!file.createNewFile()) {
    throw new IOException("Failed to create file : " + file);
...
voidemptyFile(String srcFilename)
empty File 
File srcFile = new File(srcFilename);
if (!srcFile.exists()) {
    throw new FileNotFoundException("Cannot find the file: " + srcFile.getAbsolutePath());
if (!srcFile.canWrite()) {
    throw new IOException("Cannot write the file: " + srcFile.getAbsolutePath());
FileOutputStream outputStream = new FileOutputStream(srcFilename);
...
booleanemptyFolder(File dir)
Remove all files from a folder, return false if at least one file could not be deleted. 
if (dir == null)
    throw new IllegalArgumentException("Null path in FileUtil.emptyFolder()");
if (!dir.isDirectory())
    throw new IllegalArgumentException(
            "Invalid path " + dir.getAbsolutePath() + ": not a directory, in FileUtil.emptyFolder()");
boolean ok = true;
File[] files = dir.listFiles();
for (int i = 0; i < files.length && ok; i++) {
...
voidemptyFolder(File folder)
empty Folder 
if (folder.isDirectory()) {
    File[] files = folder.listFiles();
    for (File file : files) {
        if (file.isDirectory()) {
            emptyFolder(file);
        } else {
            file.delete();