Question

我需要问三个级别的薪水。 1级必须至少为65k，2级必须至少为60k。等级1也必须至少等于等级2的110％。等级2也必须至少等于等级3的120％。我只是从等级1和等级2开始，因为如果我能弄明白，我可以弄清楚等级3这就是我所拥有的：

    do {
        System.out.println("Please enter the full time employee payscale level 1 rate: ");
        fullTimePay1 = input.nextInt();
    } while (fullTimePay1 < 65000);

    do {
        System.out.println("Please enter the full time employee payscale level 2 rate: ");
        fullTimePay2 = input.nextInt();
        } while (fullTimePay2 < 60000);

    do {
        System.out.println("Please enter the full time employee payscale level 1 rate: ");
        fullTimePay1 = input.nextInt();
        System.out.println("Please enter the full time employee payscale level 2 rate: ");
        fullTimePay2 = input.nextInt();
    } while (fullTimePay1 < (fullTimePay2 * 1.1));

但它只是一遍又一遍地重复（我在此代码之后有一个从不执行的print语句）。谁能告诉我为什么，也许可以帮助我的代码？

Answer 1

正如您的代码所示，当我输入例如100000和70000（两次）循环终止;你可能会混淆哪个值应该更大（或者连续尝试不止一次）？

您的代码将无法正常运行，因为您没有在第三个循环上执行65k和60k验证，并且您还要求每次输入两次而不是一次（正确输入时）（执行时检查条件）在循环之后，而不是之前（while循环会这样做），所以第三个循环将询问用户输入，无论值是什么）。

用以下代替3循环应该有效：

do {
  do {
    System.out.println("Please enter full time employee payscale level 1 rate:");
    fullTimePay1 = input.nextInt();
  } while (fullTimePay1 < 65000);
  do {
    System.out.println("Please enter full time employee payscale level 2 rate:");
    fullTimePay2 = input.nextInt();
  } while (fullTimePay2 < 60000);
} while (fullTimePay1 < (fullTimePay2 * 1.1));

但是，如果允许，那么在第二个上验证110％对我来说更有意义：

do {
  System.out.println("Please enter full time employee payscale level 1 rate:");
  fullTimePay1 = input.nextInt();
} while (fullTimePay1 < 66000); // 'cause min(1) = 1.1*min(2) = 1.1*60000 = 66000
do {
  System.out.println("Please enter full time employee payscale level 2 rate:");
  fullTimePay2 = input.nextInt();
} while (fullTimePay2 < 60000 || fullTimePay1 < (fullTimePay2 * 1.1));

重复数据验证

1 个答案: