Java Utililty Methods Directory Create

if (!dir.exists()) {
    if (!createDirectoryIfNotExisting) {
        throw new IOException("The directory " + dir.getAbsolutePath() + " does not exist.");
    if (!dir.mkdirs()) {
        throw new IOException("Could not create directory " + dir.getAbsolutePath());
if (!dir.isDirectory()) {
    throw new IOException("File " + dir + " exists and is not a directory. Unable to create directory.");

if (!directory.mkdir())
    throw new IOException("Unable to create directory: " + directory.getPath());
return directory;

if (directory.exists()) {
    return false;
return directory.mkdir();

if (!directory.exists()) {
    boolean succeeded = directory.mkdirs();
    if (!succeeded) {
        throw new IllegalStateException(
                String.format("Error while creating directory: %s", directory.getAbsolutePath()));

try {
    boolean bFile = dirFile.exists();
    if (bFile == true) {
        System.err.println("The folder exists.");
    } else {
        System.err.println("The folder do not exist,now trying to create a one...");
        bFile = dirFile.mkdir();
        if (bFile == true) {
...

System.out.println("Creating the folder: " + dirFile);
try {
    boolean bFile = dirFile.exists();
    if (bFile == true) {
        System.out.println("The folder exists.");
    } else {
        System.out.println("The folder do not exist,now trying to create a one...");
        bFile = dirFile.mkdir();
...

if (!f.exists()) {
    f.mkdir();

if (f.exists() && f.isDirectory())
    return;
if (!f.mkdirs())
    throw new IOException("Cannot mkdir: " + f);

if (file.getParentFile().exists()) {
    file.mkdir();
} else {
    mkDir(file.getParentFile());
    file.mkdir();

if (file.exists()) {
    assertIsDir(file);
    return false;
if (file.mkdirs())
    return true;
throw new RuntimeException("Failed to create directory '" + file + "'");