@SuppressWarnings({"SleepWhileHoldingLock", "SleepWhileInLoop"})
    public synchronized void incrementa(int tempo) {
        for (int i = 0; i < 491; i++) {
            try {
                Thread.sleep((long) (tempo / 0.3f));
                this.incrementoGeral++;
                if (this.incrementoGeral > 500) {
                    this.incrementoGeral = 0;
                }
                lbValorTotal.setText(">> " + intTempoTotal + " <<");
                repaint();
            } catch (InterruptedException ex) {
                Logger.getLogger(PainelBottom.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        try {
            Thread.sleep(1000);
        } catch (InterruptedException ex) {
            Logger.getLogger(PainelBottom.class.getName()).log(Level.SEVERE, null, ex);
        }
        repaint();
    }