I have this clock that I am making and was wondering if it was possible for java to randomly access any file, and open, that the user types in the pathing for. I am using this for the alarm portion of the clock so that an user can easily make a folder within one folder and then have the program open any music file located within it when the alarm goes off.

 

 

 

example:

 

Folder path was c:\desktop\blah

 

 

- Desktop -

blah
- hig
- file
- file
- fri
- file
- file
- die
- file
- file

package tests;

import java.io.*;
import java.util.Random;

public class Main {
   Random rg = new Random();
   public static void main(String[] args) {
       File f = new File("C:\\");
       Main main = new Main();
       main.getRandomFile(f);
   }

   public File getRandomFile(File file) {
       File[] files = file.listFiles();
       int number = rg.nextInt(files.length);
       if(files[number].isDirectory()){
           System.out.println(files[number].toString());
           return getRandomFile(files[number]);
       }
        else{
           System.out.println(files[number].toString());
           return files[number];
        }
   }
}

 

 

Something I threw together in a few seconds, ignore the System outs :)

Thanks. This will be very useful when I need to do something like this again.