The mkdir() method is a part of File class. The mkdir() function is used to create a new directory denoted by the abstract pathname. The function returns true if directory is created else returns false.
Function Signature:
public boolean mkdir()
Syntax:
file.mkdir()
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.
// 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.mkdir()) {
// 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");
}
}
} |
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 mkdir() can create the parent directories of the abstract path name if the directories are not present.
// Java program to demonstrate // the use of File.mkdir() 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.mkdir()) {
// 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");
}
}
} |
Output:
Directory cannot be created
The programs might not run in an online IDE. please use an offline IDE and set the path of the file