public static void extractres(String resname){
        try {
            InputStream in = NameClass.class.getClassLoader().getResourceAsStream("res/"+resname);
            FileOutputStream fop = new FileOutputStream(new File(path_to_file + resname));
            int read = 0;
            byte[] bytes = new byte[1024];
            while ((read = in.read(bytes)) != -1) {
                fop.write(bytes, 0, read);
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }