Java度假村费用计算程序：结果展示与客人循环实现求助

问题说明 #

无法从给定的calculateRoomCost、calculateMealPlan、getActivitiesCost方法中提取费用并展示总结果，同时不知道如何根据客人数量进行循环处理，要求必须使用题目提供的方法框架。

现有代码 #

import java.util.Scanner;

public class Problem {
    static Scanner input = new Scanner(System.in);

    public static void main(String[] args) {

        double sum = 0;

        //display welcome
        System.out.println("Welcome to Likuliku Lagoon Resort - Malolo Island, Fiji.\n");

        System.out.println("Please enter number of guests: ");
        int guests = input.nextInt();

        System.out.println("How many nights will you be staying? ");
        int GuestNights = input.nextInt();

        double loop = getActivitiesCost();


        while (loop != 6) {

            sum = sum + calculateRoomCost() + calculateMealPlan();

            loop = getActivitiesCost();
            System.out.println();
        }//end while loop



        }
        public static double calculateRoomCost (int nights){
            System.out.println("1: Standard Room no view $100/night");
            System.out.println("2: Luxury Room with view $200/night");
            System.out.println("3: Luxury Room with Balcony $300/night");
            System.out.print("Please enter your choice: ");
            int cost = input.nextInt();

            if (nights == 1)
                return cost * 100.00;
            else if (nights == 2)
                return cost * 200.00;
            else  if (nights == 3)
                return cost * 300.00;

            return cost;
        }

        public static double calculateMealPlan ( int nights){
            System.out.println("1: Lunch & Dinner only $65");
            System.out.println("2: 3-Meals a day $150");
            System.out.println("3: 3-Meals a day with drinks $225");
            System.out.println("4: No meal plan $0");
            System.out.print("Please enter your choice: ");
            int x = input.nextInt();

            if (nights == 1)
                return x * 65.00;
            else if (nights == 2)
                return x * 150.00;
            else if (nights == 3)
                return x * 225.00;
            else if (nights == 4)
                return 0;

            return nights;
        }

        public static double getActivitiesCost () {
            System.out.println("Choose from these activities");
            System.out.println("1: Scuba Adventure $300");
            System.out.println("2: Island Shopping Hop $100");
            System.out.println("3: Paddle Boarding $125");
            System.out.println("4: Deep Sea Fishing $500");
            System.out.println("5: Beach Sitting $0");
            System.out.println("6: That's all--Done!");
            System.out.print("Please enter your choice: ");
            int loop = input.nextInt();
            if (loop == 1)
                return loop * 300.00;
            else if (loop == 2)
                return loop * 100.00;
            else if (loop == 3)
                return loop * 125.00;
            else if (loop == 4)
                return loop * 500.00;
            else if (loop == 5)
                return 0;
            return loop;
        }


    }//end class

预期输入输出 #

Welcome to Likuliku Lagoon Resort - Malolo Island, Fiji.
Please enter number of guests: 2
How many nights will you be staying? 2
Start entering details for guest #1
1 : Standard Room no view $100/night
2 : Luxury Room with view $200/night
3 : Luxury Room with Balcony $300/night
Please enter your choice: 1
1 : Lunch & Dinner only $65
2 : 3-Meals a day $150
3 : 3-Meals a day with drinks $225
4 : No meal plan $0
Please enter your choice: 2
Choose from these activities
1 : Scuba Adventure $300
2 : Island Shopping Hop $100
3 : Paddle Boarding $125
4 : Deep Sea Fishing $500
5 : Beach Sitting $0
6 : That's all--Done!
Enter your choice: 1
Choose from these activities
1 : Scuba Adventure $300
2 : Island Shopping Hop $100
3 : Paddle Boarding $125
4 : Deep Sea Fishing $500
5 : Beach Sitting $0
6 : That's all--Done!
Enter your choice: 6
-------------------------------------------------------------------
Start entering details for guest #2
1 : Standard Room no view $100/night
2 : Luxury Room with view $200/night
3 : Luxury Room with Balcony $300/night
Please enter your choice: 2
1 : Lunch & Dinner only $65
2 : 3-Meals a day $150
3 : 3-Meals a day with drinks $225
4 : No meal plan $0
Please enter your choice: 2
Choose from these activities
1 : Scuba Adventure $300
2 : Island Shopping Hop $100
3 : Paddle Boarding $125
4 : Deep Sea Fishing $500
5 : Beach Sitting $0
6 : That's all--Done!
Enter your choice: 5
Choose from these activities
1 : Scuba Adventure $300
2 : Island Shopping Hop $100
3 : Paddle Boarding $125
4 : Deep Sea Fishing $500
5 : Beach Sitting $0
6 : That's all--Done!
Enter your choice: 6
The total cost estimate $1500.00
The average nightly cost person is $375.

修正后的代码 #

import java.util.Scanner;

public class Problem {
    static Scanner input = new Scanner(System.in);

    public static void main(String[] args) {
        double totalCost = 0;

        // 显示欢迎信息
        System.out.println("Welcome to Likuliku Lagoon Resort - Malolo Island, Fiji.\n");

        System.out.println("Please enter number of guests: ");
        int guestCount = input.nextInt();

        System.out.println("How many nights will you be staying? ");
        int stayNights = input.nextInt();

        // 按客人数量循环处理每个客人的费用
        for (int i = 1; i <= guestCount; i++) {
            System.out.println("Start entering details for guest #" + i);

            // 计算房间费用并累加
            totalCost += calculateRoomCost(stayNights);
            // 计算餐费并累加
            totalCost += calculateMealPlan(stayNights);

            // 处理活动选择，直到用户选6结束
            double activityCost;
            do {
                activityCost = getActivitiesCost();
                // 只有当选择不是6时，才累加活动费用
                if (activityCost != 6) {
                    totalCost += activityCost;
                }
                System.out.println();
            } while (activityCost != 6);

            // 客人之间的分隔线
            if (i != guestCount) {
                System.out.println("-------------------------------------------------------------------");
            }
        }

        // 计算人均每晚费用
        double avgNightlyPerPerson = totalCost / (guestCount * stayNights);

        // 格式化输出结果
        System.out.printf("The total cost estimate $%.2f\n", totalCost);
        System.out.printf("The average nightly cost person is $%.0f.\n", avgNightlyPerPerson);
    }

    public static double calculateRoomCost(int nights) {
        System.out.println("1: Standard Room no view $100/night");
        System.out.println("2: Luxury Room with view $200/night");
        System.out.println("3: Luxury Room with Balcony $300/night");
        System.out.print("Please enter your choice: ");
        int choice = input.nextInt();

        // 根据用户选择的房间类型计算总费用（单价 × 入住晚数）
        switch (choice) {
            case 1:
                return 100.00 * nights;
            case 2:
                return 200.00 * nights;
            case 3:
                return 300.00 * nights;
            default:
                return 0;
        }
    }

    public static double calculateMealPlan(int nights) {
        System.out.println("1: Lunch & Dinner only $65");
        System.out.println("2: 3-Meals a day $150");
        System.out.println("3: 3-Meals a day with drinks $225");
        System.out.println("4: No meal plan $0");
        System.out.print("Please enter your choice: ");
        int choice = input.nextInt();

        // 根据用户选择的餐计划计算总费用（单价 × 入住晚数）
        switch (choice) {
            case 1:
                return 65.00 * nights;
            case 2:
                return 150.00 * nights;
            case 3:
                return 225.00 * nights;
            case 4:
                return 0;
            default:
                return 0;
        }
    }

    public static double getActivitiesCost() {
        System.out.println("Choose from these activities");
        System.out.println("1: Scuba Adventure $300");
        System.out.println("2: Island Shopping Hop $100");
        System.out.println("3: Paddle Boarding $125");
        System.out.println("4: Deep Sea Fishing $500");
        System.out.println("5: Beach Sitting $0");
        System.out.println("6: That's all--Done!");
        System.out.print("Enter your choice: ");
        int choice = input.nextInt();

        // 根据选择返回对应活动费用，选6则返回6用于终止循环
        switch (choice) {
            case 1:
                return 300.00;
            case 2:
                return 100.00;
            case 3:
                return 125.00;
            case 4:
                return 500.00;
            case 5:
                return 0;
            case 6:
                return 6;
            default:
                return 0;
        }
    }
}

关键修改点 #

• 客人循环处理：使用for循环遍历每个客人，显示对应提示信息，确保每个客人的费用都被单独计算并累加。
• 修正房间/餐费计算逻辑：原方法将参数nights和用户选择的选项搞反，现在改为根据用户选择的选项获取单价，再乘以入住晚数得到总费用。
• 活动费用处理：使用do-while循环让用户可以多次选择活动，直到选6为止，每次选择（除了6）都将活动费用累加到总费用中。
• 结果展示：最后计算并格式化输出总费用和人均每晚费用，符合预期输出格式。

内容的提问来源于stack exchange，提问作者Hello7689