public void launch() {
        for (int i = 0; i < 7; i++) {
            Person person = new Person(i);
            this.addPerson(person);
            int n = queueOne.getLength();
            System.out.println("The queue at ASDA is " + n +
                               " People long.");
        }
        this.servePerson();
        System.out.println("The queue at ASDA is " + (queueOne.getLength()) +
                               " People long.");
    }