Java Can'；我不能让它工作

我知道开关中的任何变量都必须在case语句的范围之外声明，但我尝试将所有计算抛出开关范围之外，但我仍然无法从该脚本中获得所需的“总计”结果。有人能帮我吗？我只想让这个脚本最后的block-commented语句起作用

import java.util.Scanner;

public class script 
{
  public static void main(String[] args)
  {
    //initialization 
    Scanner key = new Scanner(System.in); 
    final double COST_WINE = 13.99; // What is the size of the bottle of wine? ***********************************
    final double COST_BEER_6 = 11.99, COST_BEER_12 = 19.99, COST_BEER_24 = 34.99;
    final double spirits_750 = 25.99, spirits_1000 = 32.99;
    final double gst = 0.05;  //confirm if this number is right***************************************************
    final double deposit750 = 0.10, deposit1000 = 0.25;

    double wineSubTotal, wineTotal , total_cost;
    double beer_6_SubTotal, beer_6_Total;
    double beer_12_SubTotal, beer_12_Total;
    double beer_24_SubTotal, beer_24_Total;
    double spirits_750_SubTotal, spirits_750_Total;
    double spirits_1000_SubTotal, spirits_1000_Total;
    int wineQuantity, beer_6_Quantity, beer_12_Quantity;
    int beer_24_Quantity, spirits_750_Quantity, spirits_1000_Quantity; 
    int beer_choice, spirits_choice; 
    char choice;
    String input, again;

    //loop for fun
    for(int i = 0 ; i < 40; i++)
    {
    System.out.print("-");
    }
    System.out.printf("\n*** Welcome to Yoshi's Liquor Mart ***\n");
    System.out.printf("Today's date is \n"); // Reserved for date***********************************************

    //another loop for fun                    
    for(int i = 0 ; i < 40; i++)
    {
    System.out.print("-");
    }

    //first actual loop, not for fun anymore

           do
           {
           System.out.printf("\nWine is $13.99" + "\nBeer 6 pack is $11.99\n" + "Beer 12 pack is $19.99\n" +
           "Beer 24 pack is $34.99\n" + "Spirits 750 mL is $25.99\n" + "Spirits 1000 mL is $32.99\n" + 
           "What is the item being purchased?\n" + "W for Wine, B for Beer and S for Spirits, or X to quit: "); 
           input = key.nextLine();
           choice = input.charAt(0);

               switch(choice)
               {
                 case('w'):
                 case('W'):
                      System.out.printf("\nHow many bottles of wine is being purchased? ");
                      wineQuantity = key.nextInt();
                      wineSubTotal = wineQuantity * COST_WINE;
                      wineTotal = (wineSubTotal * gst) + wineSubTotal + (deposit750 * wineQuantity);
                      System.out.printf("\nThe cost of " + wineQuantity + 
                      " bottles of wine including GST and deposit is %.2f\n", wineTotal);
                        break;
                 case('b'):
                 case('B'):
                      System.out.printf("What is size of the beer pack?\n" + "6, 12 or 24?");
                      beer_choice = key.nextInt();
                          if(beer_choice == 6)
                          {
                           System.out.printf("\nHow many 6 pack of beer is being purchased?");
                           beer_6_Quantity = key.nextInt(); 
                           beer_6_SubTotal = beer_6_Quantity * COST_BEER_6;
                           beer_6_Total = (beer_6_SubTotal * gst) + beer_6_SubTotal;
                           System.out.printf("\nThe cost of %d cases of 6 pack of beer" +
                           "including GST and deposit is %.2f\n", beer_6_Quantity, beer_6_Total); 
                          }
                          else if(beer_choice == 12)
                          {
                          System.out.printf("How many 12 pack of beer is being purchased?");
                          beer_12_Quantity = key.nextInt();
                          beer_12_SubTotal = beer_12_Quantity * COST_BEER_12;
                          beer_12_Total = (beer_12_SubTotal * gst) + beer_12_SubTotal;
                          System.out.printf("\nThe cost of %d cases of 12 pack of beer" +
                          "including GST and deposit is %.2f\n", beer_12_Quantity, beer_12_Total);                         
                          }  
                          else if(beer_choice == 24)
                          {
                          System.out.printf("How many 24 pack of beer is being purchased?");
                          beer_24_Quantity = key.nextInt();
                          beer_24_SubTotal = beer_24_Quantity * COST_BEER_24;
                          beer_24_Total = (beer_24_SubTotal * gst) + beer_24_SubTotal;
                          System.out.printf("\nThe cost of %d cases of 24 pack of beer" +
                          "including GST and deposit is %.2f\n", beer_24_Quantity, beer_24_Total);
                          }
                          else
                          {
                          System.out.println("Invalid number");
                          }  
                       break;
                 case('s'):
                 case('S'):
                      System.out.printf("What is size of Spirits?\n" + "750ml or 1000ml?");
                      spirits_choice = key.nextInt();
                          if(spirits_choice == 750)
                          {
                          System.out.printf("How many bottles are being purchased?");
                          spirits_750_Quantity = key.nextInt();
                          spirits_750_SubTotal = spirits_750_Quantity * spirits_750;
                          spirits_750_Total = (spirits_750_SubTotal * gst) + spirits_750_SubTotal + 
                          (deposit750 * spirits_750_Quantity);
                          System.out.printf("\nThe cost of %d bottle(s) of Spirits 750ml " +
                          "including GST and deposit is %.2f\n", spirits_750_Quantity, spirits_750_Total);                            
                          }
                          else if(spirits_choice == 1000)
                          {
                          System.out.printf("How many bottles are being purchased?");
                          spirits_1000_Quantity = key.nextInt();
                          spirits_1000_SubTotal = spirits_1000_Quantity * spirits_1000;
                          spirits_1000_Total = (spirits_1000_SubTotal * gst) + spirits_1000_SubTotal + 
                          (deposit1000 * spirits_1000_Quantity);
                          System.out.printf("\nThe cost of %d bottle(s) of Spirits 1000ml " +
                          "including GST and deposit is %.2f\n", spirits_1000_Quantity, spirits_1000_Total);                            
                          }
                          else
                          {
                          System.out.println("Invalid number");
                          }  
                        break;
                  case('x'):     
                  case('X'):

                        break;
                  default:
                          System.out.printf("Invalid choice");
                        break;

               }

          System.out.println("Is this customer's order complete? ");
          again = key.nextLine();
          }
          while(again.equals("n"));


         //Total cost

         /*total_cost = wineTotal + beer_6_Total + beer_12_Total + beer_24_Total + 
         spirits_750_Total + spirits_1000_Total;

         System.out.printf("The total cost for this customer is %f", total_cost);*/

   key.close(); //There was a warning message(not error), so I found out on StackOverFlow that this would close the Scanner
  }

}

import java.util.Scanner；
公共类脚本
{
公共静态void main（字符串[]args）
{
//初始化
扫描仪键=新扫描仪（System.in）；
最终双倍成本_WINE=13.99；//这瓶酒的大小是多少***********************************
最终双倍成本啤酒6=11.99，成本啤酒12=19.99，成本啤酒24=34.99；
最终双份烈酒750=25.99，烈酒1000=32.99；
最终双gst=0.05；//确认此数字是否正确***************************************************
最终双倍存款750=0.10，存款1000=0.25；
双倍葡萄酒小计、葡萄酒总计、总成本；
双倍啤酒6小计，啤酒6小计；
双倍啤酒小计，啤酒总数；
双倍啤酒24小时小计，啤酒24小时总计；
双份烈酒小计，烈酒总数；
双份烈酒小计，烈酒总数；
国际葡萄酒数量、啤酒6数量、啤酒12数量；
国际啤酒24杯、烈酒750杯、烈酒1000杯；
int啤酒精选、烈酒精选；
字符选择；
再次输入字符串；
//环游
对于（int i=0；i<40；i++）
{
系统输出打印（“-”）；
}
System.out.printf（“\n***欢迎来到Yoshi's酒市场***\n”）；
System.out.printf（“今天的日期是\n”）；//保留日期***********************************************
//另一个有趣的循环
对于（int i=0；i<40；i++）
{
系统输出打印（“-”）；
}
//第一个实际循环，不再是为了好玩
做
{
System.out.printf（“\n行是$13.99”+”\n第6包是$11.99\n“+”啤酒12包是$19.99\n”+
“啤酒24包$34.99\n”+“烈酒750毫升$25.99\n”+“烈酒1000毫升$32.99\n”+
“正在购买的项目是什么？\n”+“W表示葡萄酒，B表示啤酒，S表示烈酒，或X表示退出：”；
输入=key.nextLine（）；
选择=输入.charAt（0）；
开关（选择）
{
案例（“w”）：
案例（“W”）：
System.out.printf（“\n购买了多少瓶葡萄酒？”）；
wineQuantity=key.nextInt（）；
葡萄酒小计=葡萄酒数量*葡萄酒成本；
葡萄酒总计=（葡萄酒小计*消费税）+葡萄酒小计+（存款750*葡萄酒数量）；
System.out.printf（“\n成本”+葡萄酒数量+
“包括GST和押金在内的葡萄酒瓶数为%.2f\n”，葡萄酒总数）；
打破
案例（“b”）：
案例（“B”）：
System.out.printf（“啤酒包装的尺寸是多少？\n”+“6、12或24？”）；
beer_choice=key.nextInt（）；
如果（啤酒选择==6）
{
System.out.printf（“\n购买了多少6包啤酒？”）；
啤酒数量=key.nextInt（）；
啤酒小计=啤酒数量*成本啤酒6；
啤酒总计=（啤酒小计*消费税）+啤酒小计；
System.out.printf（“\n 6包啤酒%d箱的成本”+
“包括GST和押金为%.2f\n”，啤酒数量，啤酒总量）；
}
否则如果（啤酒选择==12）
{
System.out.printf（“购买了多少12包啤酒？”）；
啤酒数量=key.nextInt（）；
啤酒小计=啤酒数量*成本啤酒12；
啤酒总计=（啤酒小计*消费税）+啤酒小计；
System.out.printf（“\n 12包啤酒%d箱的成本”+
“包括GST和押金为%.2f\n”，啤酒数量，啤酒总量）；
}  
否则如果（啤酒选择==24）
{
System.out.printf（“购买了多少24包啤酒？”）；
啤酒24_数量=key.nextInt（）；
啤酒小计=啤酒数量*成本啤酒数量；
啤酒24小时总计=（啤酒24小时小计*消费税）+啤酒24小时小计；
System.out.printf（“\n%d箱24包啤酒的成本”+
“包括GST和押金为%.2f\n”，啤酒数量，啤酒总量）；
}
其他的
{
System.out.println（“无效编号”）；
}  
打破
案例（'s'）：
案例（'S'）：
System.out.printf（“烈酒的大小是多少？\n”+“750ml还是1000ml？”）；
spirits_choice=key.nextInt（）；
如果（选择==750）
{
System.out.printf（“购买了多少瓶？”）；
烈酒数量=key.nextInt（）；
烈酒小计=烈酒数量*烈酒750；
烈酒总计=（烈酒小计*gst）+烈酒小计+
（存款750*酒精750\单位数量）；
System.out.printf（“\n%d瓶750ml酒精的成本”+
“包括
        case ('w'):
        case ('W'): {
            System.out.printf("\nHow many bottles of wine is being purchased? ");
            int wineQuantity = key.nextInt();
            double wineSubTotal = wineQuantity * COST_WINE;
            wineTotal = (wineSubTotal * gst) + wineSubTotal + (deposit750 * wineQuantity);
            System.out.printf(
                    "\nThe cost of " + wineQuantity + " bottles of wine including GST and deposit is %.2f\n",
                    wineTotal);
        }
            break;