Java 计算观众数量和票价

这是我的作业，它要求用户输入一周中的一天，并显示成本。我想从用户那里获得更多信息，询问观众人数，以便计算门票的总定价金额。这是我的密码

    Scanner keyboard = new Scanner(System.in);
    // Prompt user to enter the day of the week
    System.out.println("Please enter the day of the week:");
    day = keyboard.nextLine();

    switch (day){
    // User can input the days in different ways and the cost will be printed
    case "Monday":
    case "monday":
    case "MONDAY":
                  System.out.println("The cost of the movie ticket is RM 5.");
                  break;

    case "Tuesday":
    case "tuesday":
    case "TUESDAY":
                   System.out.println("The cost of the movie ticket is RM 5.");
                   break;

    case "Wednesday":
    case "wednesday":
    case "WEDNESDAY":
                    System.out.println("The cost of the movie ticket is RM 5.");
                    break;

    case "Thursday":
    case "thursday":
    case "THURSDAY":
                    System.out.println("The cost of the movie ticket is RM 10.");
                    break;

    case "Friday":
    case "friday":
    case "FRIDAY":
                    System.out.println("The cost of the movie ticket is RM 20.");
                    break;

    case "Saturday":
    case "saturday":
    case "SATURDAY":
                    System.out.println("The cost of the movie ticket is RM 30.");
                    break;

    case "Sunday":
    case "sunday":
    case "SUNDAY":
                    System.out.println("The cost of the movie ticket is RM 20.");
                    break;

    default:
            System.out.println("Please make sure you made the correct input.");
            keyboard.close();


    }   

}

---

}

据我所知，这应该是解决您问题的方法

Scanner keyboard = new Scanner(System.in);
// Prompt user to enter the day of the week
System.out.println("Please enter the day of the week:");
//Make the input with lowercase/uppercase so that you don't need to check with many cases
String day = keyboard.nextLine().toLowerCase();
//Input the number of viewers
System.out.println("Please enter how many viewer are there:");
int viewers = keyboard.nextInt();
//Define a price
int price=0;
switch (day) {
    // User can input the days in different ways and the cost will be printed
    case "monday":
        price=5;
        System.out.println("The cost of the movie ticket is RM"+price+".");
        price = price*viewers;
        System.out.println("The cost of all the movie tickets is RM"+price+".");
        break;


    case "tuesday":
        price=5;
        System.out.println("The cost of the movie ticket is RM"+price+".");
        price = price*viewers;
        System.out.println("The cost of all the movie tickets is RM"+price+".");
        break;


    case "wednesday":
        price=5;
        System.out.println("The cost of the movie ticket is RM"+price+".");
        price = price*viewers;
        System.out.println("The cost of all the movie tickets is RM"+price+".");
        break;

    case "thursday":
        price=10;
        System.out.println("The cost of the movie ticket is RM"+price+".");
        price = price*viewers;
        System.out.println("The cost of all the movie tickets is RM"+price+".");
        break;

    case "FRIDAY":
        price=20;
        System.out.println("The cost of the movie ticket is RM"+price+".");
        price = price*viewers;
        System.out.println("The cost of all the movie tickets is RM"+price+".");
        break;


    case "saturday":
        price=30;
        System.out.println("The cost of the movie ticket is RM"+price+".");
        price = price*viewers;
        System.out.println("The cost of all the movie tickets is RM"+price+".");
        break;


    case "sunday":
        price=20;
        System.out.println("The cost of the movie ticket is RM"+price+".");
        price = price*viewers;
        System.out.println("The cost of all the movie tickets is RM"+price+".");
        break;

    default:
        System.out.println("Please make sure you made the correct input.");
        keyboard.close();

}

---

请告诉我这是否是您想要的

以及您面临的问题是什么？我不清楚问题是什么。另外，只需使用toLowerCase（）即可，这样就不会复制日期。这不是问题。我想通过计算总价格来添加其他信息，您的意思是您想添加类似

numberOfPeople=keyboard.nextLine（）的内容？我们可以为您提供解决作业的提示。您不需要在打印的字符串中硬编码成本。大小为7的数组可以容纳成本。当您接受用户提供的观众数量时，将其乘以成本[day_Index]，然后打印结果。您也可以使用一个映射来保存成本，其中日期字符串作为键，成本整数作为值。我的坏星期五应该是星期五