是否允许循环遍历用户输入以计算成本？

Question

我在Java工作。所以我想做的是，从订阅包中获取用户输入

public static String subscriberPackage() { //Method to get the customers name
        
        Scanner sc = new Scanner(System.in);
        System.out.println("\nPlease choose a package the customer would like:");
        System.out.println("Enter Bronze, Silver or Gold to select a package.");
        String subscriptionPackage = sc.nextLine(); //Get subscription package from the user
        while (!(subscriptionPackage.equalsIgnoreCase("Bronze") || subscriptionPackage.equalsIgnoreCase("Silver") || subscriptionPackage.equalsIgnoreCase("Gold"))) {

            System.err.println("This is not a valid package!");
            System.err.println("Please try again!");
            System.out.println("Please choose a package the customer would like:");
            System.out.println("Bronze, Silver or Gold.");
            subscriptionPackage = sc.nextLine();
            //If the package entered is not Bronze, Silver or Gold, the user is asked to re-enter till the while condition is  met

        }
        return subscriptionPackage; //Returns the subscription package to the newSubscription method
    }

和订阅持续时间

 public static int subscriberDuration() { //Method to get the subscription duration
        Scanner sc = new Scanner(System.in);
        System.out.println("\nPlease choose the subscription duration");
        System.out.println("It must be either 1, 3, 6 or 12 months.");
        System.out.println("Please now enter the subscription duration the customer would like");
        int subscriptionDuration = sc.nextInt(); //Get the subscription duration from the user


        while (subscriptionDuration != 1 && subscriptionDuration != 3 && subscriptionDuration != 6 && subscriptionDuration != 12) {
            System.err.println("This is not a valid duration, please try again!");
            System.err.println("It must be either 1, 3, 6 or 12 months.");
            subscriptionDuration = sc.nextInt();
            //If the duration entered is not 1, 3, 6 or 12, the user is asked to re-enter till the while condition is  met

        }
        return subscriptionDuration; //Returns the subscription duration to the newSubscription method
    }

并计算订户账单中的成本。

private static int subscriberBill(String subscriptionPackage, int subscriptionDuration) {

        int subscriptionCost = 0;
        int[] subsBronzePackageCosts = new int[1000];
        subsBronzePackageCosts[0] = 600;
        subsBronzePackageCosts[1] = 500;
        subsBronzePackageCosts[2] = 400;
        subsBronzePackageCosts[3] = 300;
        int count = 0;

        for(int i = 1; i <= 12; i+=3){
            if (subscriptionPackage.equals(subscriptionPackage) && (subscriptionDuration == subscriptionDuration)) {
                subscriptionCost = (subsBronzePackageCosts[i] + i + count);
                count++;
                System.out.println("\nThe cost of this subscription is: " + subscriptionCost);

                return subscriptionCost;


            }
        }
        return subscriptionCost;
    }
}

我已经设法通过这些信息，并开始添加青铜层订阅包的成本。我已经这样做了使用数组：

int[] subsBronzePackageCosts = new int[1000];
        subsBronzePackageCosts[0] = 600;
        subsBronzePackageCosts[1] = 500;
        subsBronzePackageCosts[2] = 400;
        subsBronzePackageCosts[3] = 300;

我试图循环遍历所述数组，例如，用户将持续时间设置为3，它将使用for循环遍历我的数组，并将subscriptionCost设置为适当的值。在这个例子中，是400。

我遇到的问题是，使用for循环遍历数组。我有，所以每次只增加1个，报告500个。我确实有一个针对不同包类型和持续时间的if-else语句的解决方案，但显然，这不是理想的做法，并且会导致重复代码，我正试图避免这种情况。

提前谢谢！

Answer 1

你的代码看起来有点混乱。但是我想我要指出你如果陈述中的逻辑...

订阅包。等于（subscriptionPackage）。。。这永远是真的，对吗？所以你可以删除这个。

subscriptionDuraction==suscriptionDuration。。。提乌斯也是真的，对吗？所以你的整个if语句消失了。

所以这个if语句的计算结果总是true，这意味着您将始终在if块中命中return语句，i=1，在数组中，[1]=500。