Java Create Directory - Java Tutorial

Introduction
In the section, you will learn how a directory or subdirectories are created. This program also explains the process of creating all non-existent ancestor directories automatically. We will use the File class to crate the directory.
 File
The File class an abstract representation of file and directory pathnames. File class is used to interact with the files system.

Here is the code for creating directory and all non-existing ancestor directories:

 

import java.io.*;
class CreateDirectory 
{
   public static void main(String args[])
  {
      try{
    String strDirectoy ="test";
    String strManyDirectories="dir1/dir2/dir3";

    // Create one directory
    boolean success = (new File(strDirectoy)).mkdir();
    if (success) {
      System.out.println("Directory: " + strDirectoy + " created");
    }    
  
    // Create multiple directories
    success = (new File(strManyDirectories)).mkdirs();
    if (success) {
      System.out.println("Directories: " + strManyDirectories + " created");
    }

    }catch (Exception e){//Catch exception if any
      System.err.println("Error: " + e.getMessage());
    }
  }
}

Output of the program: 

C:\nisha>javac CreateDirectory.java C:\nisha>java CreateDirectory Directory: test created Directories: dir1/dir2/dir3 created C:\nisha>

This program takes inputs to create a directory "test" and subdirectories "dir1\dir2\dir3". the mkdir( ) method is used to create a single directory while the mkdirs( ) method is used to create multiple subdirectories.
Download the code