class CoffeeBean {
    private final String variety;

    protected CoffeeBean(String variety) {
        this.variety = variety;
    }

    public String getVariety() {
        return variety;
    }
}

class CoffeeMachine {

    public void brew(CoffeeBean bean) {
        System.out.println("Starting brew process...");
        System.out.println("Brewing coffee using " + bean.getVariety() + " beans...");
        System.out.println("Coffee is ready!");
    }

}

public class Example01 {
    public static void main(String[] args) {
        CoffeeMachine machine = new CoffeeMachine();

        CoffeeBean arabica = new CoffeeBean("Arabica");
        machine.brew(arabica);

        CoffeeBean robusta = new CoffeeBean("Robusta");
        machine.brew(robusta);
    }
}