JAVA：需要帮助修复我的电影票课程吗

我正在为一个课堂作业制作一个电影票程序，但在一些事情上遇到了一些困难

我不知道如何计算用户想要的门票的总成本，因为我不知道如何告诉程序使用不同的公式来计算日场票和夜场票

我还需要找到一种方法，不允许用户购买儿童票，如果电影评级为R

我的代码在下面

/**
 * @param args
 */
public static void main(String[] args) 
{
    //initializes variables for the various costs of each ticket
    double adultMatCost = 7.50;
    double adultEveCost = 9.50;
    double childMatCost = 7.00;
    double childEveCost = 7.00;
    double seniorMatCost = 5.00;
    double seniorEveCost = 7.00;

    //introduces the user to the program, creates scanner for program,
    //and asks user to enter their name
    Scanner scan = new Scanner(System.in);
    System.out.println("Welcome to the J-Town Theater.");
    System.out.print("Please enter a name for our transaction records:");
    String name = scan.next();

    //thanks user and asks user which movie they would like to choose
    //assigns a String movie is assigned text based on what the user chose
    //if user enters a value other than 1 or 2 the program terminates gracefully
    System.out.println("Thank you, " + name);
    System.out.println("Which movie would you like to see?");
    System.out.println("[1] My Little Pony (PG)");
    System.out.println("[2] Blade Runner 2049 (R)");
    System.out.print("Enter movie choice: ");
    int movieChoice = scan.nextInt();
    String movie = "";
        if (movieChoice == 1){
            movie = ("My Little Pony");
        }
        else if (movieChoice == 2){
            movie = ("Blade Runner 2049");
        }
        else{
            System.out.println("I'm sorry, " + name + ", but that is an invalid choice");
            System.out.println("Goodbye.");
            return;
        }

    //asks user what time they want to see the movie
    //user enters M/m for Matinee and E/e for evening
    //if user enters something besides M/m/E/e the program terminates gracefully
    System.out.println("What time of day would you like?");
    System.out.println("[M] Matinee");
    System.out.println("[E] Evening");
    System.out.print("Enter movie time:");
    String timeDay = scan.next();
    double totalCost = 0;
    String timeDayResult = "";
    double timeDayME = 0;
        if (timeDay.equals("m")){
            timeDayResult = ("Matinee showing");
        }
        else if (timeDay.equals("M")){
            timeDayResult = ("Matinee showing");
        }
        else if (timeDay.equals("e")){
            timeDayResult = ("Evening showing");
        }
        else if (timeDay.equals("E")){
            timeDayResult = ("Evening showing");
        }
        else{
            System.out.println("I'm sorry, " + name + ", but that is an invalid choice.");
            System.out.println("Goodbye.");
            return;
        }

    //asks how many tickets they would like and shows the price for each ticket
    //user enters number between 0 and 10 if they enter something besides that
    //the program will terminate gracefully
    //if the movie chosen was rated R no tickets can be sold to children
    System.out.println("How many tickets would you like?");
    System.out.println("Child : $7.00");
    System.out.println("Adult : $7.50");
    System.out.println("Senior: $5.00");
    System.out.print("Enter number of children (0-10):");
    int ticketsChild = scan.nextInt();
        if (ticketsChild >= 0){
            int ticketsChildTotal = ticketsChild;
        }
        if (ticketsChild <= 10){
            int ticketsChildTotal = ticketsChild;
        }
        else{
            System.out.println("I'm sorry, " + name + ", but that is an invalid choice.");
            System.out.println("Goodbye.");
            return;
        }
    System.out.print("Enter number of adults (0-10):");
    int ticketsAdult = scan.nextInt();
        if (ticketsAdult >= 0){
            int ticketsAdultTotal = ticketsAdult;
        }
        if (ticketsAdult <= 10){
            int ticketsAdultTotal = ticketsAdult;
        }
        else{
            System.out.println("I'm sorry, " + name + ", but that is an invalid choice.");
            System.out.println("Goodbye.");
            return;
        }
    System.out.print("Enter number of seniors (0-10):");
    int ticketsSenior = scan.nextInt();
        if (ticketsSenior >= 0){
            int ticketsSeniorTotal = ticketsSenior;
        }
        if (ticketsSenior <= 10){
            int ticketsSeniorTotal = ticketsSenior;
        }
        else{
            System.out.println("I'm sorry, " + name + ", but that is an invalid choice.");
            System.out.println("Goodbye.");
            return;
        }

    //gives a transaction summary for the user showing what movie they want,
    //what time they want, and how many tickets they want total,
    //then the program calculates the total ticket price
    System.out.println("Thank you, Penolope, here is a record of your purchase.");
    int totalTickets = ticketsSenior + ticketsAdult + ticketsChild;
    System.out.println(movie + " (" + timeDayResult + "): " + totalTickets + " tickets total");
    System.out.println("Children: " + ticketsChild);
    System.out.println("Adults: " + ticketsAdult);
    System.out.println("Seniors: " + ticketsSenior);

    double totalMatineeCost = (childMatCost * ticketsChild) + (adultMatCost * ticketsAdult) + (seniorMatCost + ticketsSenior);
    double totalEveningCost = (childMatCost * ticketsChild) + (adultMatCost * ticketsAdult) + (seniorMatCost + ticketsSenior);


    System.out.println("Total cost: $" + totalCost);

}

/**
*@param args
*/
公共静态void main（字符串[]args）
{
//为每张票的各种成本初始化变量
双倍成人成本=7.50；
双成人成本=9.50；
双倍成本=7.00；
双倍子女费用=7.00；
双倍成本=5.00；
双倍成本=7.00；
//向用户介绍程序，为程序创建扫描仪，
//并要求用户输入其名称
扫描仪扫描=新扫描仪（System.in）；
System.out.println（“欢迎来到J城剧院”）；
System.out.print（“请为我们的交易记录输入名称：”）；
字符串名称=scan.next（）；
//感谢用户并询问用户想要选择哪部电影
//分配字符串根据用户选择的内容为电影分配文本
//如果用户输入的值不是1或2，程序将正常终止
System.out.println（“谢谢，”+name）；
System.out.println（“您想看哪部电影？”）；
System.out.println（“[1]我的小马（PG）”）；
系统输出打印项次（“[2]叶片转轮2049（R）”）；
System.out.print（“输入电影选项：”）；
int movieChoice=scan.nextInt（）；
字符串电影=”；
if（movieChoice==1）{
电影=（“我的小马”）；
}
else if（movieChoice==2）{
电影=（“刀锋杀手2049”）；
}
否则{
System.out.println（“对不起，+name+”，但这是一个无效的选择）；
System.out.println（“再见”）；
返回；
}
//询问用户希望在何时观看电影
//用户为日场输入M/M，为晚间输入E/E
//如果用户输入M/M/E/E之外的内容，程序将优雅地终止
System.out.println（“您希望在一天中的什么时候？”；
System.out.println（“[M]日场”）；
System.out.println（“[E]晚上”）；
系统输出打印（“输入电影时间：”）；
字符串timeDay=scan.next（）；
双重总成本=0；
字符串timeDayResult=“”；
双timeDayME=0；
if（timeDay.equals（“m”））{
timeDayResult=（“日场演出”）；
}
else if（timeDay.equals（“M”））{
timeDayResult=（“日场演出”）；
}
else if（timeDay.equals（“e”））{
timeDayResult=（“晚间演出”）；
}
else if（timeDay.equals（“E”））{
timeDayResult=（“晚间演出”）；
}
否则{
System.out.println（“对不起，+name+”，但这是一个无效的选择。”）；
System.out.println（“再见”）；
返回；
}
//询问他们想要多少张票，并显示每张票的价格
//如果用户输入了除此之外的数字，则输入0到10之间的数字
//程序将优雅地终止
//如果选择的电影被评为R级，就不能向儿童出售任何电影票
System.out.println（“您想要多少张票？”）；
System.out.println（“儿童：$7.00”）；
System.out.println（“成人：$7.50”）；
System.out.println（“高级：$5.00”）；
系统输出打印（“输入子项数（0-10）：”；
int ticketsChild=scan.nextInt（）；
如果（ticketchild>=0）{
int ticketchildtotal=ticketchild；
}
如果（ticketchild=0）{
int ticketsadultottal=ticketsAdult；
}
如果（ticketsAdult=0）{
int ticketsSeniorTotal=ticketsSenior；
}
如果（票务高级）
我不知道如何计算用户想要的门票的总成本，因为我不知道如何告诉程序使用不同的公式来计算日场票和夜场票

您已经在两个单独的变量中计算了成本，因此只需使用一个条件，根据用户输入选择您需要的一个

if("Matinee showing".equals(timeDayResult)){
    totalCost = totalMatineeCost;
}else{
    totalCost = totalEveningCost;
}

我还需要找到一种方法，不允许用户购买儿童票，如果电影评级为R

同样，在询问孩子的数量之前，使用一个条件。例如：

if(movieChoice == 2){
    //Set number of child tickets to 0, perhaps inform user they are not allowed to buy child tickets since movie is rated R
}else{
    //ask the user for number of child tickets
}

最后几点想法-您的程序中有几个bug。我注意到了这些，但可能还有更多：


总成本的计算是错误的
验证用户输入的逻辑错误

请确保彻底测试代码。
我已否决了此问题，因为没有证据表明对此代码执行了任何调试。请通过您的问题向我们说明调试发现了什么，以及有关实际代码行的特定问题。请参阅：和。