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  1. namespace Problem_11.Odd_Number
  2. {
  3.     using System;
  4.  
  5.     public class Program
  6.     {
  7.         public static void Main()
  8.         {
  9.             var number = int.Parse(Console.ReadLine());
  10.  
  11.             while (true)
  12.             {
  13.                 if (number % 2 == 0)
  14.                 {
  15.                     Console.WriteLine("Please write an odd number.");
  16.                 }
  17.  
  18.                 else
  19.                 {
  20.                     Console.WriteLine($"The number is: {Math.Abs(number)}");
  21.                     break;
  22.                 }
  23.  
  24.                 number = int.Parse(Console.ReadLine());
  25.             }
  26.         }
  27.     }
  28. }
Runtime error #stdin #stdout #stderr 0s 135168KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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Unhandled Exception:
System.ArgumentNullException: Value cannot be null.
Parameter name: String
  at System.Number.StringToNumber (System.String str, System.Globalization.NumberStyles options, System.Number+NumberBuffer& number, System.Globalization.NumberFormatInfo info, System.Boolean parseDecimal) [0x00006] in <8f2c484307284b51944a1a13a14c0266>:0 
  at System.Number.ParseInt32 (System.String s, System.Globalization.NumberStyles style, System.Globalization.NumberFormatInfo info) [0x00014] in <8f2c484307284b51944a1a13a14c0266>:0 
  at System.Int32.Parse (System.String s) [0x00007] in <8f2c484307284b51944a1a13a14c0266>:0 
  at Problem_11.Odd_Number.Program.Main () [0x00005] in <2d99eebf4fca4ee09403c37c0f5092a9>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.ArgumentNullException: Value cannot be null.
Parameter name: String
  at System.Number.StringToNumber (System.String str, System.Globalization.NumberStyles options, System.Number+NumberBuffer& number, System.Globalization.NumberFormatInfo info, System.Boolean parseDecimal) [0x00006] in <8f2c484307284b51944a1a13a14c0266>:0 
  at System.Number.ParseInt32 (System.String s, System.Globalization.NumberStyles style, System.Globalization.NumberFormatInfo info) [0x00014] in <8f2c484307284b51944a1a13a14c0266>:0 
  at System.Int32.Parse (System.String s) [0x00007] in <8f2c484307284b51944a1a13a14c0266>:0 
  at Problem_11.Odd_Number.Program.Main () [0x00005] in <2d99eebf4fca4ee09403c37c0f5092a9>:0
https://ideone.com/B6Q13g
language:
C# (gmcs 5.20.1)
created:
7 years ago
visibility:
secret

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