public static void update() {
        for (int i = 0; i < 6; i++) {
            if (marqueedLines[i] != null) {
                marqueedLines[i].doIncrement();
                println(i + 1, marqueedLines[i].getPrintableString());
                printed[i] = true;
            }
        }
        int queuedLineIndex = 0;
        for (int i = 0; i < 6 && queuedLineIndex < queueCount; i++) {
            if (!printed[i]) {
                println(i + 1, queuedLines[queuedLineIndex++]);
            }
        }
        display.updateLCD();
    }