public class Barber extends Thread {
    BarberShop barberShop;

    Barber(BarberShop barberShop) {
        this.barberShop = barberShop;
    }

    @Override
    public void run() {
        try {
            barberShop.work();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}