public void start() {
        Timer time = new Timer();
        TimerTask task = new TimerTask() {

            /**
             * Actions to do
             */
            @Override
            public void run() {
                localNet.progress();
                localNet.showNet();
                if (!localNet.hasSafe()) {
                    this.cancel();
                }
            }
        };
        time.schedule(task, 1000, 3000);
    }