Java-Directory-Creator.txt:

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class DirectoryCreate1 {

    public static void main(String[] args) {

        String dir = "/home/mkyong/test2/test3/test4/";

        try {

            Path path = Paths.get(file);

            Files.createDirectories(path);

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

            //Files.createDirectory(path);

        } catch (IOException e) {
            System.err.println("Failed to create directory!" + e.getMessage());
        }

    }
}

2. Create Directory – Legacy IO
For legacy IO java.io.File, the similar methods are file.mkdir() to create a directory, and file.mkdirs() to create a directory including all nonexistent parent directories.


freestar
Both file.mkdir() and file.mkdirs() returns a boolean, true if success to create the directory, fail otherwise, no exception thrown.

DirectoryCreate2.java

import java.io.File;

public class DirectoryCreate2 {

    public static void main(String[] args) {

        String dir = "/home/mkyong/test2/test3/test4/";

        File file = new File(dir);

        // true if the directory was created, false otherwise
        if (file.mkdirs()) {
            System.out.println("Directory is created!");
        } else {
            System.out.println("Failed to create directory!");
        }

    }

}