Question

我需要帮助在单独的方法中访问数组的特定值。在这个程序中，我应该写一个程序，要求用户输入一个日历年的每个月的降雨量。然后，该程序将确定年度和月平均降雨量，并最终允许用户搜索特定数量。

我应该为最后一个方法执行此操作：SearchForAmounts() - 此方法将是一个void方法，并为参数提供两个double数组 list，一个用于降雨量数组，一个用于带有月份的数组。它将要求用户在阵列中搜索降雨量。然后，它将报告在哪个月首次下跌或将会出现的数额报告说那一年没有降雨量。它将使用Array类方法之一来确定要输出的内容。它会在方法中执行两次 - 即在方法中重复两次代码。

我在找到一种方法来访问monthInTheYear数组中的值时遇到了麻烦。这是我的代码：

namespace CJohnson_Prog8
{
    class Program
    {
        static void Main(string[] args)
        {

            string[] monthInTheYear;
            double[] rainfallAmmounts;

            monthInTheYear = new string[12] { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };
            rainfallAmmounts = new double[12];

            Console.WriteLine("Welcome to the Annual Rainfall Program");
            GetRainFall(rainfallAmmounts, monthInTheYear);

            PrintAmounts(rainfallAmmounts, monthInTheYear);
            TotalYearRain(rainfallAmmounts);
            SearchForAmounts(rainfallAmmounts, monthInTheYear);

        }

        public static void GetRainFall(double[] rainfall, string[] month)
        {
            for (int i = 0; i < rainfall.Length; i++)
            {
                Console.Write("Enter the rainfall in inches in {0}: ", month[i]);
                rainfall[i] = double.Parse(Console.ReadLine());

                while (rainfall[i] < 0)
                {
                    Console.Write("Enter the rainfall in inches in {0}: ", month[i]);
                    rainfall[i] = double.Parse(Console.ReadLine());
                }
            }
        }

        public static void PrintAmounts(double[] rainfall, string[] month)
        {
            for (int i = 0; i < rainfall.Length; i++)
            {
                Console.WriteLine("{0}\t\t{1:F2}", month[i], rainfall[i]);
            }
        }

        public static double TotalYearRain(double[] totalrainFall)
        {
            double averageRainFall;
            double sum = 0;
            for (int i = 0; i < totalrainFall.Length; i++)
            {
                sum += totalrainFall[i];
            }
            averageRainFall = sum / 12;
            Console.WriteLine("");
            Console.WriteLine("Total Annual Rain is: {0:F2}", sum);
            Console.WriteLine("Average Month Rain:  {0:F2}", averageRainFall);
            return sum;
        }

        public static void SearchForAmounts(double[] searchRainFall, string[] searchMonths)
        {


                Console.Write("Enter a rainfall amount to search for: ");
                double RainFall = double.Parse(Console.ReadLine());


                if (Array.IndexOf(searchRainFall, RainFall) != 1)
                {
                    Console.WriteLine(searchMonths[i] + " was the first month to have " + RainFall + " inches fell this year.");
                }
                else
                {
                    Console.WriteLine("No rainfall of " + RainFall + " inches fell that year.");
                }

        }



        }
    }

Answer 1

for (int i = 0; i <= 1; i++) {
    //do stuff
    var index = Array.IndexOf(searchRainFall, RainFall);
    if (index > -1) {
        Console.WriteLine(searchMonths[index] + " was the first month to have " + RainFall + " inches fell this year.");
    } else {
        Console.WriteLine("No rainfall of " + RainFall + " inches fell that year.");
    }
}

需要帮助以单独的方法访问数组的特定值

1 个答案: