How to Create Directory in Java Example

Nikos MaravitsasMay 5th, 2014Last Updated: May 5th, 2014

0 196 1 minute read

Following the “How to create file in Java Example“, in this example we are going to see how to create a new Directory/Folder in your file system with Java.

As you might have noticed, Java offers a very rich I/O API. So. it is fairly easy to create a Directory in Java.

1. Create a single Directory

Let’s see how you can use a single Directory using File utility class.

CreateDirectoryExample.java:

package com.javacodegeeks.core.io;

import java.io.File;

public class CreateDirectoryExample {
	
	private static final String FOLDER ="F:\\nikos7\\Desktop\\testFiles\\newFolder";

	public static void main(String[] args) {
		
		File newFolder = new File(FOLDER);
		
		boolean created =  newFolder.mkdir();
		
		if(created)
			System.out.println("Folder was created !");
		else
			System.out.println("Unable to create folder");
	}
}

2. Create a Directory path

You can also use File class to create more than one directories at a time. Like this :

CreateDirectoryExample.java:

package com.javacodegeeks.core.io;

import java.io.File;

public class CreateDirectoryExample {
	
	private static final String FOLDER ="F:\\nikos7\\Desktop\\testFiles\\Afolder\\inA\\inB\\inC";

	public static void main(String[] args) {
		
		File newFolder = new File(FOLDER);
		
		boolean created =  newFolder.mkdirs();
		
		if(created)
			System.out.println("Folder was created !");
		else
			System.out.println("Unable to create folder");
	}
}

You can see I’m using mkdirs() method instead of mkdir() of the previous snippet. With mkdirs() you are able to create all non-existent parent folders of the leaf-folder in your path. In this specific example folders Afolder, inA, inB, inC where created.