Java 仅当为true时才请求变量

我正在做我的CSE20课程的第一个项目，我必须编写一个简单的租车系统。我一开始就被困住了。我需要问你要那辆车，#天，然后再问你是否是俱乐部会员。如果您没有选择，代码需要继续并输出总计，它会这样做。但是，如果你是俱乐部成员，它必须询问另一个关于高管薪酬的问题，这将在总产出中增加另一行。我不知道如何编写代码来完整地运行它。任何帮助都将不胜感激

import java.util.Scanner;

public abstract class Bobcar1 {

public static void main(String[] args) {
    // TODO Auto-generated method stub

    Scanner blah = new Scanner(System.in);
    System.out.println("Available cars: 1 for Econobox, 2 for Compact, 3 for Standard");
    System.out.print("Please choose the rental car: ");
    int car;
    car = blah.nextInt();
    System.out.print("Please enter the number of rental days: ");
    int day;
    day = blah.nextInt();
    System.out.print("Club member?: 1 for yes, 0 for no: ");
    int re;
    re = blah.nextInt();
    if (re == 1)
        System.out.print("Platinum Executive Package?: 1 for yes, 0 for no: ");
    int pack;
    pack = blah.nextInt();
    if (re == 0) then what do i code here to get the program to run through completely?

    if (car == 1)   {
            int car1;
            car1 = (25 * day);

                    System.out.println("Base: " + day + " day(s) for a Econobox @ $25 per day:      " + "+$" + car1);
                    if (pack == 0 && re == 0)       {
                    System.out.println();
                    System.out.println("Total Estimate for Rental:                  " + " $" + car1);
                    }
                    if (re == 1 && pack == 0)       {
                            int re1;
                            re1 = (day/5)*25;
                    System.out.println("Club Member Discount:                   " + "-$" + re1);
                            int total1r;
                            total1r = car1 - re1;
                    System.out.println();
                    System.out.println("Total Estimate for Rental:                  " + " $" + total1r);
                    }
                    if (pack == 1 && re == 1)       {
                            int pack1;
                            pack1 = (int) (car1*.20);
                    System.out.println("Platinum Executive Package:                 " + "+$" + pack1);     
                            int re1;
                            re1 = (day/5)*25;
                    System.out.println("Club Member Discount:                   " + "-$" + re1);
                            int total1;
                            total1 = car1 + pack1 - re1;
                            System.out.println("Total Estimate for Rental:                  " + " $" + total1);
                    }
    }
    if (car == 2)   {
            int car1;
            car1 = (55 * day);

                    System.out.println("Base: " + day + " day(s) for a Compact @ $55 per day:  " + "+$" + car1);
                    if (pack == 0 && re == 0)       {
                    System.out.println();
                    System.out.println("Total Estimate for Rental:                  " + " $" + car1);
                    }
                    if (re == 1 && pack == 0)       {
                            int re1;
                            re1 = (day/5)*55;
                    System.out.println("Club Member Discountt:                   " + "-$" + re1);
                            int total1r;
                            total1r = car1 - re1;
                    System.out.println();
                    System.out.println("Total Estimate for Rental:                  " + " $" + total1r);
                    }
                    if (pack == 1 && re == 1)       {
                            int pack1;
                            pack1 = (int) (car1* .20);
                    System.out.println("Platinum Executive Package:                 " + "+$" + pack1);     
                            int re1;
                            re1 = (day/5)*55;
                    System.out.println("Club Member Discount:                   " + "-$" + re1);
                            int total1;
                            total1 = car1 + pack1 - re1;
                            System.out.println("Total Estimate for Rental:                  " + " $" + total1);
                    }
    }
    if (car == 3)   {
            int car1;
            car1 = (100 * day);

                    System.out.println("Base: " + day + " day(s) for a Standard @ $100 per day:        " + "+$" + car1);
                    if (pack == 0 && re == 0)       {
                    System.out.println();
                    System.out.println("Total Estimate for Rental:                  " + " $" + car1);
                    }
                    if (re == 1 && pack == 0)       {
                            int re1;
                            re1 = (day/5)*100;
                    System.out.println("Return Customer Discount:                   " + "-$" + re1);
                            int total1r;
                            total1r = car1 - re1;
                    System.out.println();
                    System.out.println("Total Estimate for Rental:                  " + " $" + total1r);
                    }
                    if (pack == 1 && re == 1)       {
                            int pack1;
                            pack1 = (int) (car1*.20);
                    System.out.println("Platinum Executive Package:                 " + "+$" + pack1);     
                            int re1;
                            re1 = (day/5)*100;
                    System.out.println("Club Member Discount:                   " + "-$" + re1);
                            int total1;
                            total1 = car1 + pack1 - re1;
                            System.out.println("Total Estimate for Rental:                  " + " $" + total1);
    }

 }}}}

您应该修改您的OP（原始帖子），将您发布的问题包含在您的评论中

如果您只想修改代码，只询问他们是否想要白金套餐（如果他们指定自己是俱乐部会员），那么您需要修改代码，以便在打印问题时，您只能从扫描仪读取该问题的输入

换句话说，在if语句块周围放置{}。这是一种最佳实践，即使对于单行语句块也是如此

您目前有：

...
int re;
re = blah.nextInt();
if (re == 1)
    System.out.print("Platinum Executive Package?: 1 for yes, 0 for no: ");
int pack;
pack = blah.nextInt();
...

您可以这样修改代码：

...
int pack;
int re = blah.nextInt();
if (re == 1) {
    System.out.print("Platinum Executive Package?: 1 for yes, 0 for no: ");
    pack = blah.nextInt();
}
...

---

如果你问一个具体的问题，帮助你会更容易。任何帮助都将是一份声明。你想得到什么帮助？如果有俱乐部会员要求白金套餐，而不只是停留在那里，我该如何编码？当我运行它的时候，它会一直运行到那个时候，然后停下来。要求白金套餐在功能上与要求俱乐部会员有什么不同？你显然对后者没意见。我只想问他们是否想要白金套餐。如果有俱乐部会员，如果没有，应该在那之后输出总数。哦，好的，非常感谢。对不起，这是我第一次尝试编码并寻求帮助。所以我错过了很多。再次感谢。如果这是你正在寻找的答案，请考虑将它标记为可接受的解决方案。这是StackExchange站点的标准做法。