java - 选择要继续的实例

Question

不知何故，我尝试让用户选择哪个厨师必须准备食物。我已经创建了变量 whichcook 并将其放置在 cook1 原来的位置。但我不知道如何继续下去。我想让用户在“Jan de Vries”或“SinBad”之间进行选择以进行准备。因此，方法 deliverer.delivered(whichcook, customer); 继续使用所选名称。我想是否必须使用 instanceof 我猜，但不知道如何真正做到这一点。我知道如何进行用户输入和案例等，这不是问题。更多的是关于如何隔离正确的实例!有人给个关键建议吗？？？

java

package KebabStore;

public class DamascusKebab 

{

    public static int cooksnumber;
    public static int deliverersnumber;

    @SuppressWarnings("unused")
    public static void main(String[] args)
    {

        Cook cook1      = new Cook ("Jan de Vries", "Butcherknife 1", "1212-IS", "Allahmelo", 123456);
        Cook cook2      = new Cook ("Sinbad", "Camelhumb 2","2323-IS", "Halal-lem", 654321);

        Deliverer deliverer1 = new Deliverer ("Ali Baba", "Helmgras 11", "3434-JH", "Ji-Hattem",456789);
        Deliverer deliverer2 = new Deliverer ("Muammar", "Zadeldreef 22", "4545-JH", "Moskemenade", 987654);


        Customer customer    = new Customer ("Piet Hein", "Klantlaan 25", "5656-KL", "Darmstadt");


        cooksnumber = Cook.numberofcooks;
        deliverersnumber = Deliverer.numberofdeliverers;



        Cook whichcook = cook1;

        deliverer.delivered(whichcook, customer);

    }


}

Answer 1

如何获取用户输入？

如果来自扫描仪

Cook whichcook;

Scanner scanner = new Scanner(System.in);

int choice = scanner.nextInt()

if (choice == 1)
    whichcook = cook1;
else
    whichcook = cook2;

deliverer.delivered(whichcook, customer);