Need some help.

[Riddhi Joshi]

Hello everyone,
I want to know any classes or methods in Java which helps me figure out the list of all the directories located in all the drives of the computer. Further, it should also give me the list of files in each directories.
I want the list of all the MS Office application exe's. They can be installed anywhere-on any drives of the computer. I have to figure this out for the further enhancements in my project that I am working on.
I hope I am making some sense.
Thanks.

[Michael Morris]

Hi Riddhi,
All you need is the good ole File class and some recursion to list every file on every drive on a machine. To begin you'll want to call the static listRoots() method which returns a File[] array. Try this:

import java.io.*;
public class ListAllFiles {
    public static void listFile(File file) {
        System.out.println("" + file);
        if (file.isDirectory()) {
            try {
                File[] files = file.listFiles();
                for (int i = 0; i < files.length; i++) {
                    listFile(files[i]);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
    public static void main(String[] args) {
        try {
            File[] drives = File.listRoots();
            for (int i = 0; i < drives.length; i++) {
                listFile(drives[i]);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

That should list every file on the system. With some modifications you can manipulate the output in whatever manner you like.
Hope this helps,
Michael Morris

[Riddhi Joshi]

Thank you so much for the code.
That really helped.