Java copy a folder excluding some internal file

Question

I have a folder with this structure

mainFolder

   --Sub1  
         --File .scl
         --File .awl
         --Other files
   --Sub2  
         --Fi         


        

Answer 1

Is the case of those string fixed in stone? Maybe something like

new FileFilter() {
    public boolean accept(File pathname) {
        String path = pathname.getAbsolutePath().toLowerCase();

        return (!pathname.isDirectory() || path.endsWith("sub3")) &&
            (!Settings.getSiemensOptionAWL() && path.endsWith(".awl")) &&
            (!Settings.getSiemensOptionSCL() && path.endsWith(".scl"));
    }
}