How to list files existing in a folder ??

Question

hello
I want to lis all files that are existing in a folder
MaApp\myFolder\
note: myApplication is as executeable Jar file
I do somthing like that
File []fileList = (new File(this.getClass().getResource("/MyFolder/").getPath())).listFiles();
    for(int i=0; i < fileList.length; i++){
        String srcName = fileList.getName();
System.out.println("Filename: "+srcName);
// but java.lang.NullPointerException will be thrown
what is to do ????
thanks

Answer 1

that is not what I ned
so.
Mypp contain mor folders
myApp/Foder1
myApp/Folder2
myApp/Folder3/
in Folder3 are more files file1.txt, file2.txt,file3.txt,...
tol list the files wich exist in Folder3
  File []fileList = (new File("Folder3\\")).listFiles();
    for(int i=0; i < fileList.length; i++){
   }this works fine
but wenn I create an executeable jar of myApp
I becom an NullPointerException
becaus there is problem with the path new File("Folder3\\")
what I want how to let jar to know the path of hiles which are in Folder3
thanks