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How to create a directory hierarchy using Java?
The class named File of the java.io package represents a file or directory (path names) in the system. This class provides various methods to perform various operations on files/directories.
The mkdir() method of this class creates a directory with the path represented by the current object.
Creating directory hierarchy
There are two main ways to create a directory hierarchy in Java −
- Using mkdirs() Method
- Using createDirectories() Method
Let us look at these solutions one by one.
Using mkdirs() Method
To create a hierarchy of new directories you can using the method mkdirs() of the same class. This method creates the directory with the path represented by the current object, including non-existing parent directories.
Example
import java.io.File;
import java.util.Scanner;
public class CreateDirectory {
public static void main(String args[]) {
System.out.println("Enter the path to create a directory: ");
Scanner sc = new Scanner(System.in);
String path = sc.next();
System.out.println("Enter the name of the desired a directory: ");
path = path+sc.next();
//Creating a File object
File file = new File(path);
//Creating the directory
boolean bool = file.mkdirs();
if(bool) {
System.out.println("Directory created successfully");
}else {
System.out.println("Sorry couldn't create specified directory");
}
}
}
Output
Enter the path to create a directory: D:\test\myDirectories\ Enter the name of the desired a directory: sample_directory Directory created successfully
If you verify you can observe see the created directory as −
Using the createDirectories() Method
Since Java 7 the Files class was introduced this contains (static) methods that operate on files, directories, or other types of files.
The createDirectories() method creates the given directory including the non-existing parent directory.
Example
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Scanner;
public class Demo {
public static void main(String args[]) throws IOException {
System.out.println("Enter the path to create a directory: ");
Scanner sc = new Scanner(System.in);
String pathStr = sc.next();
System.out.println("Enter the required directory hierarchy: ");
pathStr = pathStr+sc.next();
//Creating a path object
Path path = Paths.get(pathStr);
//Creating a directory
Files.createDirectories(path);
System.out.println("Directory hierarchy created successfully");
}
}
Output
Enter the path to create a directory: D: Enter the required directory hierarchy: sample1/sample2/sapmle3/final_directory Directory hierarchy created successfully
If you verify, you can observe see the created directory hierarchy as −
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