how to get file names from a directory or package in eclipse ?

hi ,

I am trying to write a small code here where in i want to get file names from a directory..
here is the code i am trying..

import java.io.*;
public class GetFileList
{
public static void main(String args[]){
File file = new File("home/");
File[] files = file.listFiles();
for (int fileInList = 0; fileInList < files.length; fileInList++)
{
System.out.println(files[fileInList].toString());
}
}
}

but it gives me an error saying
Exception in thread "main" java.lang.NullPointerException
at GetFileList.main(GetFileList.java:7)

(1) could anyone tel me, y is it so ? and what am i supposed to add now to get the file names from the directory..

(2) and i also want to know how to work in the same way in eclipse , so as to get file names from a particular package, instead of a directory...

Thanking you in advance

File file = new File("home/");

remove the forward slash '/'

the name of the directory is "home" not "home/"


"home/" becomes "home/null" as if the compiler expected another folder name:

"home/subdirectory"

Bad news: use Code-tags and indent when you post code.

Good news: @(1) I've run your code and it runs fine. The only thing I adapted is the path of course.

@(2) A package is a directory, so the same way.
(it might help to use a little diagnostic method like:

Code:

---

        public static void testFile( String filePathAndName){
                File file =new File( filePathAndName);
                String path = file.getAbsolutePath();
                System.out.println( "File: " + filePathAndName + "\n" + "AbsPath: " + path );
        }

---

)

hey thanks a lot to u both :) it works now with the same code i had given above.. it was only my path problem.. and it works the same way with the package too..

but now i just hav a small question again.. i get the list of file names with the path..
but i want only the file names..
i get like home/blabla/bla/fileName.txt.. i want only "fileName.txt" without the path..

could u tel me how can i do that now with the code i hav given above.. i mean how can i just avoid the path...?

I'm so sorry. I'm getting into trouble on this forum when spoonfeeding.
I can't imagine that you can't find out with what you have already.

Pooja, instead of printing File as String:

Code:

---

System.out.println(files[fileInList].toString());

---

You can use the File object's getName() method to get just the file name like this:
files[fileInList].getName()

Please refer to the documentation for more information
File (Java 2 Platform SE v1.4.2))

@ozzyman
You are a much more friendly person than me!