Ich habe einige Monate in ein Array aus einer externen Textdatei eingelesen und ich muss die Monate in ein Array konvertieren, das den Wert der Monate z. Januar = 1, Februar = 2 usw. Damit können sie dann durch Quicksort gestellt werden.Konvertieren Monate zu Zahlenäquivalent zur Verwendung in Quicksort
public static void Main(string[] args)
{
//Read external files into arrays.
string[] Month = File.ReadLines(@"Month.txt").ToArray();
string[] Year = File.ReadLines(@"Year.txt").ToArray();
//Convert arrays from string to double to be used in sort.
double[] YearSort = Array.ConvertAll(Year, double.Parse);
int UserInput1;
//Create new array that will hold selected array to be used in sort.
double[] data = new double[1022];
//Prompt user to select action.
Console.WriteLine("Press 1 to Sort by month or 2 to sort by year.");
UserInput1 = Convert.ToInt32(Console.ReadLine());
if(UserInput1 == 1)
{
Array.Copy(Month,data,1022);
QuickSort(data);
for (int i = 0; i < 1022; i++)
Console.WriteLine(data[i]);
Console.WriteLine();
}
else if (UserInput1 == 2)
{
Array.Copy(YearSort,data,1022);
QuickSort(data);
for (int i = 0; i < 1022; i++)
Console.WriteLine(data[i]);
Console.WriteLine();
}
else
{
Console.WriteLine("Please try again and select a valid option");
}
}
static int MonthToDouble(string Month)
{
int NewMonth = 0;
switch(Month)
{
case "January":
case "january":
NewMonth = 1;
break;
case "February":
case "february":
NewMonth = 2;
break;
case "March":
case "march":
NewMonth = 3;
break;
case "April":
case "april":
NewMonth = 4;
break;
case "May":
case "may":
NewMonth = 5;
break;
case "June":
case "june":
NewMonth = 6;
break;
case "July":
case "july":
NewMonth = 7;
break;
case "August":
case "august":
NewMonth = 8;
break;
case "September":
case "september":
NewMonth = 9;
break;
case "October":
case "october":
NewMonth = 10;
break;
case "November":
case "november":
NewMonth = 11;
break;
case "December":
case "december":
NewMonth = 12;
break;
}
return NewMonth;
}
static string DoubleToMonth(double Month)
{
string NewMonth = "";
switch ((int)Month)
{
case 1:
NewMonth = "January";
break;
case 2:
NewMonth = "February";
break;
case 3:
NewMonth = "March";
break;
case 4:
NewMonth = "April";
break;
case 5:
NewMonth = "May";
break;
case 6:
NewMonth = "June";
break;
case 7:
NewMonth = "July";
break;
case 8:
NewMonth = "August";
break;
case 9:
NewMonth = "September";
break;
case 10:
NewMonth = "October";
break;
case 11:
NewMonth = "November";
break;
case 12:
NewMonth = "December";
break;
}
return NewMonth;
}
//QuickSort for double data values are in ascending order.
public static void QuickSort(double[] data)
{
Quick_Sort(data, 0, data.Length - 1);
}
public static void Quick_Sort(double[] data, int left, int right)
{
int i, j;
double pivot, temp;
i = left;
j = right;
pivot = data[(left + right)/2];
do
{
while ((data[i] < pivot) && (i < right)) i++;
while ((pivot < data[j]) && (j > left)) j--;
if (i <= j)
{
temp = data[i];
data[i] = data[j];
data[j] = temp;
i++;
j--;
}
} while (i <= j);
if (left < j) Quick_Sort(data, left, j);
if (i < right) Quick_Sort(data, i, right);
}
}
Wie würde ich Januar mit meinem Monat Saiten ersetzen? Sie sind in einem Array und es gibt viel zu viele, um manuell zu schreiben. – ConfusedProgrammer
@ConfusedProgrammer siehe meine Bearbeitung. Warum haben Sie eine 'MonthToDouble()' Methode erstellt und niemals benutzt? – Quantic