File.mkdir() vs. File.mkdirs()

Java comes with two create directory methods : 

• mkdir()
• Creates one directory at a time
• fails if it can't find the parent directory of the directory it is trying to create

• mkdirs()
• Creates multiple directories, if required
• Automatically creates specified directory path, if not exists

Both returns true, if directories successfully created.

Example 1

File file = new File("C:\\Directory1");

if(file.mkdir()) {

  System.out.println("Directory is created!");

} else {

  System.out.println("Failed to create directory!");

}

Example 2

File files = new File("C:\\Directory2\\Sub1\\Sub2");

if(files.mkdirs()) {

  System.out.println("Multiple directories are created!");

} else {

  System.out.println("Failed to create multiple directories!");

}