Java Utililty Methods Create Directory

List of utility methods to do Create Directory

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Description

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

Method

BooleanmkdirIfMissing(File dir)
mkdir If Missing 
return !dir.exists() && dir.mkdir();
intmkdirIfNotExists(File dir)
0: dir not created because it already exists 1: dir created -1: dir needs to be created, but failed 
if (!dir.exists()) {
    if (dir.mkdirs()) {
        return 1;
    } else {
        return -1;
} else {
    return 0;
...
booleanmkDirRec(File file)
Creates all required directories for the provided file. 
if (file == null)
    return true;
if (!file.exists()) {
    if (!mkDirRec(file.getParentFile()))
        return false;
    if (!file.mkdir())
        return false;
if (!file.isDirectory())
    return false;
return true;
voidmkdirs(File folder)
mkdirs 
if (folder != null) {
    if (!folder.isDirectory()) {
        if (!folder.mkdirs()) {
            throw new RuntimeException("Unable to create directory " + folder.getAbsolutePath());
voidmkdirs(File outdir, String path)
mkdirs 
File d = new File(outdir, path);
if (!d.exists())
    d.mkdirs();
Filemkdirs(File parent, String name, boolean mkdirs)
Creates and returns a File for the given path and name. 
return mkdirs(new File(parent, name), mkdirs);
booleanmkDirs(File path)
mk Dirs 
return path.mkdirs();
voidmkdirs(File path)
mkdirs 
if (!path.mkdirs()) {
    throw new IOException("Can't create folder(s): " + path);
booleanmkdirs(File path)
File.mkdirs() method doesn't work when multiple threads are creating paths with a common parent directory simultaneously. 
if (path.exists()) {
    return true;
if (path.mkdir() || path.exists()) {
    return true;
File canonFile = null;
try {
...
Filemkdirs(File path)
mkdirs 
path = getCleanAbsolutePath(path);
if (!path.exists()) {
    if (!path.mkdirs()) {
        throw new IOException("Could not mkdirs " + path.getAbsolutePath());
return path;