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Java File Class void deleteOnExit() method with Example

Java File Class void deleteOnExit() method: Here, we are going to learn about the void deleteOnExit() method of File class with its syntax and example.
Submitted by Preeti Jain, on July 16, 2019

File Class void deleteOnExit()

• This method is available in package java.io.File.deleteOnExit().
• This method is used to delete the file or directory when the virtual machine terminates.
• The return type of this method is void so it does not return anything.
• In this method delete file or directories in the reverse order, that means last created file or directories will be deleted first when virtual machine terminates.
• This method may raise an exception (i.e. Security Exception) delete access is not given to the file.

Syntax:

    void deleteOnExit(){
    }

Parameter(s):

We don't pass any object as a parameter in the method of the File.

Return value:

The return type of this method is void, it does not return anything.

Java program to demonstrate example of deleteOnExit() method

// import the File class because we will use File class methods
import java.io.File;

// import the Exception class because it may raise an 
// exception when working with files
import java.lang.Exception;

class DeleteFileOnExit {
    public static void main(String[] args) {
        try {
            // Specify the path of file and we use double slashes to 
            // escape '\' character sequence for windows otherwise 
            // it will be considerable as url.
            File file1 = new File("C:\\Users\\computer clinic\\OneDrive\\Articles\\myjava.txt");

            // By using getAbsolutePath() return the complete 
            // path of the file
            String abs_path = file1.getAbsolutePath();

            // Display absolute path of the file object 
            System.out.println("The absolute path of the file 1 if given path is absolute :" + " " + abs_path);

            // By using deleteOnExit() method to delete the file 
            // when the virtual machine terminates
            file1.deleteOnExit();
            System.out.println("This file will delete as soon as the virtual machine terminates");

        } catch (Exception e) {
            System.out.println("An error occurred.");
            e.printStackTrace();
        }
    }
}

Output

E:\Programs>javac DeleteFileOnExit.java

E:\Programs>java DeleteFileOnExit
The absolute path of the file 1 if given path is absolute : C:\Users\computer clinic\OneDrive\Articles\myjava.txt
This file will delete as soon as the virtual machine terminates