File mkdirs() method in Java with examples

The mkdirs() method is a part of File class. The mkdirs() function is used to create a new directory denoted by the abstract pathname and also all the non existent parent directories of the abstract pathname. If the mkdirs() function fails to create some directory it might have created some of its parent directories. The function returns true if directory is created else returns false.

Function Signature:

public boolean mkdirs()

Syntax:



file.mkdirs()

Parameters: This method do not accepts any parameter.

Return Value: The function returns boolean data type. The function returns true if directory is created else returns false.

Exception: This method throws SecurityException if the method does not allow directory to be created

Below programs will illustrate the use of mkdirs() function:

Example 1: Try to create a new directory named program in “f:” drive.

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// Java program to demonstrate
// the use of File.mkdirs() method
  
import java.io.*;
  
public class GFG {
  
    public static void main(String args[])
    {
  
        // create an abstract pathname (File object)
        File f = new File("F:\\program");
  
        // check if the directory can be created
        // using the abstract path name
        if (f.mkdirs()) {
  
            // display that the directory is created
            // as the function returned true
            System.out.println("Directory is created");
        }
        else {
  
            // display that the directory cannot be created
            // as the function returned false
            System.out.println("Directory cannot be created");
        }
    }
}

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Output:

Directory is created

Example 2: Try to create a new directory named program1 in “f:\program” directory, but program directory is not created. We will test whether the function mkdirs() can create the parent directories of the abstract pathname if the directories are not present.

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code

// Java program to demonstrate
// the use of File.mkdirs() method
  
import java.io.*;
  
public class GFG {
  
    public static void main(String args[])
    {
        // create an abstract pathname (File object)
        File f = new File("F:\\program\\program1");
  
        // check if the directory can be created
        // using the abstract path name
        if (f.mkdirs()) {
  
            // display that the directory is created
            // as the function returned true
            System.out.println("Directory is created");
        }
        else {
            // display that the directory cannot be created
            // as the function returned false
            System.out.println("Directory cannot be created");
        }
    }
}

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Output:

Directory is created

The programs might not run in an online IDE. please use an offline IDE and set the path of the file



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Second year Department of Information Technology Jadavpur University

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