Delete a Directory in Java

import java.io.File;

public class Main {
    public static void main(String[] args) {

        try {
            // create a new file object
            File directory = new File("Directory");

            // delete the directory
            boolean result = directory.delete();

            if(result) {
                System.out.println("Directory Deleted");
            }
            else {
                System.out.println("Directory not Found");
            }

        } catch (Exception e) {
            e.getStackTrace();
        }
    }
}

Here, if the directory is present, then the message Directory Deleted is shown. Otherwise, Directory not Found is shown.

• This program deals with the deletion process of an empty folder.
• In the main method pass the name of the directory in the constructor of the instantiated object of File class.
• The deletion process comprises of utilizing delete() method of File class.
• One condition for using delete() method is that the directory should be empty before deletion.
• As the focus of this program is to delete an empty directory, therefore delete() comes into play.
• This method returns a boolean type value.
•  If the intended directory exists in the location stored in the Path object, also it is empty then it is deleted.
• In other case, a message is displayed indicating that the mentioned directory does not exist in the given path.
• One thing to keep in mind that this method unlike in other languages, deletes files or directories permanently.

public class Main {
   public static void main(String[] args) {
  
     try {
       // create a new file object
       File directory = new File("Directory");
  
       // list all the files in an array
       File[] files = directory.listFiles();
  
       // delete each file from the directory
       for(File file : files) {
         System.out.println(file + " deleted.");
         file.delete();
       }
  
       // delete the directory
       if(directory.delete()) {
         System.out.println("Directory Deleted");
       }
       else {
         System.out.println("Directory not Found");
       }
  
     } catch (Exception e) {
       e.getStackTrace();
     }
   } 
 }

Here, if the directory is present, then the message Directory Deleted is shown. Otherwise, Directory not Found is shown.

• This program is a bit different from the previous one, in a manner that it deletes the files contained in the directory and then the directory itself.
• For this purpose, the program constitutes of two portions.
• First segment of the program deals with files deletion.
• Pursuant to the previous example, first a File type object is instantiated.
• After that all the files that exist in the directory are stored into a File type array.
• For this purpose, listFiles() method of File class comes into play, which returns a list of all the files in a given directory.
• The for-each loop iterates over every file in the array, one by one and deletes them by calling delete() method.
• A message is also displayed, indicating the names of the files being deleted during each step.
• After that delete() method is called again, upon the directory as it is empty now.
• This time directory will be removed permanently.