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  1.  
  2.  
  3.  
  4.  
  5.  
  6. using System;
  7. using System.Reflection;
  8. using System.Collections.Generic;
  9. using System.Text.RegularExpressions;
  10. using System.Threading.Tasks;
  11. using System.Threading;
  12. using System.Text;
  13. using System.Data;
  14. namespace ConsoleApplication1
  15. {
  16.     class NumbersPositionsInWords
  17.     {
  18.         public string zeroPosition;//One, Two, Three
  19.         public string tenthPosition;// Holds Twenty, Thirty, etc.
  20.         public string elevenSeries;//Special words like 11 = Eleven, 12 = Tweleve, etc.
  21.     }
  22.  
  23.     class Program
  24.     {
  25.         static Dictionary<int, NumbersPositionsInWords> numbersToWordsDictionary = new Dictionary<int, NumbersPositionsInWords>();
  26.         static string hundredString = "Hundred";
  27.         static StringBuilder numberToWordText = new StringBuilder();
  28.  
  29.         static Program()
  30.         {
  31.             numbersToWordsDictionary.Add(1,
  32.                 new NumbersPositionsInWords() { zeroPosition = "One", tenthPosition = "Ten", elevenSeries = "Eleven" });
  33.  
  34.             numbersToWordsDictionary.Add(0,
  35.                 new NumbersPositionsInWords() { zeroPosition = "Zero", tenthPosition = null, elevenSeries = "Ten" });
  36.  
  37.             numbersToWordsDictionary.Add(2,
  38.                 new NumbersPositionsInWords() { zeroPosition = "Two", tenthPosition = "Twenty", elevenSeries = "Tweleve" });
  39.  
  40.             numbersToWordsDictionary.Add(3,
  41.                 new NumbersPositionsInWords() { zeroPosition = "Three", tenthPosition = "Thirty", elevenSeries = "Thirteen" });
  42.  
  43.             numbersToWordsDictionary.Add(4,
  44.                 new NumbersPositionsInWords() { zeroPosition = "Four", tenthPosition = "Fourty", elevenSeries = "Fourteen" });
  45.  
  46.             numbersToWordsDictionary.Add(5,
  47.                 new NumbersPositionsInWords() { zeroPosition = "Five", tenthPosition = "Fifty", elevenSeries = "Fifteen" });
  48.  
  49.             numbersToWordsDictionary.Add(6,
  50.                 new NumbersPositionsInWords() { zeroPosition = "Six", tenthPosition = "Sixty", elevenSeries = "Sixteen" });
  51.  
  52.             numbersToWordsDictionary.Add(7,
  53.                 new NumbersPositionsInWords() { zeroPosition = "Seven", tenthPosition = "Seventy", elevenSeries = "Seventeen" });
  54.  
  55.             numbersToWordsDictionary.Add(8,
  56.                 new NumbersPositionsInWords() { zeroPosition = "Eight", tenthPosition = "Eighty", elevenSeries = "Eighteen" });
  57.  
  58.             numbersToWordsDictionary.Add(9,
  59.                 new NumbersPositionsInWords() { zeroPosition = "Nine", tenthPosition = "Ninty", elevenSeries = "Ninteen" });
  60.  
  61.         }
  62.  
  63.         public static void Main(string[] args)
  64.         {
  65.             Console.WriteLine("Enter a 3digit number");
  66.             string inputString = Console.ReadLine();
  67.             ValidateInput(inputString);
  68.  
  69.             int hundredthPostionDigit = GetDigitFromPosition(inputString, 0);
  70.             StringBuilder resultString = new StringBuilder();
  71.  
  72.             if (hundredthPostionDigit > 0)
  73.                 resultString.AppendFormat("{0}{1} {2}", numbersToWordsDictionary[hundredthPostionDigit].zeroPosition,
  74.                     string.Empty, hundredString);
  75.  
  76.             int tenthPositionDigit = GetDigitFromPosition(inputString, 1);
  77.             int unitsPositionDigit = GetDigitFromPosition(inputString, 2);
  78.  
  79.             ParseTenthUnitPositionDigit(tenthPositionDigit, unitsPositionDigit);
  80.  
  81.             if (resultString.Length > 0 && numberToWordText.Length > 0)
  82.                 resultString.AppendFormat(" {0} {1}", "And", numberToWordText);
  83.             else resultString.Append(numberToWordText);
  84.  
  85.             Console.WriteLine(resultString);
  86.             Console.ReadLine();
  87.         }
  88.  
  89.         private static void ValidateInput(string str)
  90.         {
  91.             int dummy;
  92.             if (str.Length > 3 || str.Length < 3 || !Int32.TryParse(str, out dummy))
  93.             {
  94.                 Console.WriteLine("Enter numbers with only 3 digits. Press Enter key to close application.");
  95.                 Console.ReadLine();
  96.                 Environment.Exit(0);
  97.             }
  98.         }
  99.  
  100.         private static void ParseTenthUnitPositionDigit(int tenthPositionDigit, int unitsPositionDigit)
  101.         {
  102.             if (tenthPositionDigit > 1)
  103.                 numberToWordText.AppendFormat("{0} {1}", numbersToWordsDictionary[tenthPositionDigit].tenthPosition,
  104.                     unitsPositionDigit != 0 ? numbersToWordsDictionary[unitsPositionDigit].zeroPosition : string.Empty);
  105.  
  106.             if (tenthPositionDigit < 1)
  107.                 numberToWordText.AppendFormat("{0}", unitsPositionDigit > 0 ? numbersToWordsDictionary[unitsPositionDigit].zeroPosition : string.Empty);
  108.  
  109.             if (tenthPositionDigit == 1)
  110.                 numberToWordText.AppendFormat("{0}", unitsPositionDigit == tenthPositionDigit ?
  111.                     numbersToWordsDictionary[tenthPositionDigit].elevenSeries : numbersToWordsDictionary[unitsPositionDigit].elevenSeries);
  112.         }
  113.  
  114.         private static int GetDigitFromPosition(string str, int position)
  115.         {
  116.             return Int32.Parse(str[position].ToString());
  117.         }
  118.     }
  119. }
  120.  
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https://ideone.com/LEYQ1
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
public

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