final Runnable ask_database = new Runnable() {
        public void run() {

                nox_value = constructionSiteService.getNox();
                dust_value = constructionSiteService.getDust();
                sound_value = constructionSiteService.getNoise();
                switch (choise) {
                    case 0:

                        System.out.println("nox = " + nox_value);
                        break;

                    case 1:

                        System.out.println("dust = " + dust_value);
                        break;

                    case 2:

                        System.out.println("noise = " + sound_value);
                        break;

        }
    };

    executorService.scheduleAtFixedRate(ask_database, 0, 5, TimeUnit.SECONDS);