How to create new directory inside directory in Java?



Problem Description :


Write a program in Java that creates a new directory inside the directory.


Java program that creates a new directory inside given directory.
Create new directory inside directory in Java


Concept :


We can solve this problem with the help of mkdir() method of File class that is present in java.io package. We will use following two constructors of File class to create file class instance.
                                             File file=new File(directorypath);
            File file=new File(directoryname,filename);

Algorithm :


  1. Validate drive letter. Drive letter should be character.
  2. Check whether given directory already exists in given drive or not? 
  3. If directory exists then no need to create new directory otherwise create directory.
  4. Check whether new directory exists in given directory or not?
  5. If directory exists then no need to create new directory otherwise create directory.

Java Program :




Output :


Output of Java program that creates a new directory inside given directory.
Output - How to create a new directory inside given directory in Java?

After the execution of above program


Directory present inside given directory
Directory "demo" inside directory "D:\javamultiplex"

References :


https://docs.oracle.com/javase/7/docs/api/java/io/File.html#exists()

https://docs.oracle.com/javase/7/docs/api/java/io/File.html#mkdir()


https://docs.oracle.com/javase/7/docs/api/java/lang/String.html


Thank you friends, I hope you have clearly understood the solution of this problem. If you have any doubt, suggestion or query please feel free to comment below. You can also discuss this solution in our forum.

Tags : File Handling, Create new directory inside directory, if else, Scanner, BufferedReader, File, String, Regular Expressions, InputStreamReader, java.io, mkdir(), exists().

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How to create new directory inside directory in Java? How to create new directory inside directory in Java? Reviewed by Rohit Agarwal on 4/02/2017 Rating: 5

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