The folder is /src/img. I need to get all file names(png files) from img folder and all subfolders.I dont know the full path to the folder so i need only to focus the project resourse. I need them in array. Using Java8 and Eclipse Mars.
So far this works:
try {
Files.walk(Paths.get("/home/fixxxer/NetBeansProjects/Installer/src/img/")).forEach(filePath -> {
            if (Files.isRegularFile(filePath)) {
                System.out.println(filePath);
            }
        });
    } catch (IOException ex) {
        Logger.getLogger(InstallFrame.class.getName()).log(Level.SEVERE, null, ex);
    }
The problem is that the folder need to be called like this:
/img cause it is inside the project
Thanks in advance :) 
