c# - Check if input matches in list -


i have used 2 list, , not sure method use print input. want show months first, let user choose 1 month , show days. 

    class program     {         static void main(string[] args)         {             console.writeline("choose month: ");             console.readline();              list<int> list = new list<int> { 31, 28, 31, 30, 31, 30, 31, 31, 30, 30, 30, 31 };             list<string> manad = new list<string> { "januari", "februari", "mars", "april", "maj", "juni", "juli", "augusti", "september", "oktober", "november", "december" };              string inmat;             inmat = console.readline();              if (inmat == 31) ;             {                 console.writeline(manad[0] + " " + list[0]);                 console.readline();             }         }      } }

with 2 lists better use dictionary code below

using system; using system.collections.generic; using system.linq; using system.text;  namespace consoleapplication1 {     class program     {          static void main(string[] args)         {             console.writeline("choose month: ");             console.readline();              dictionary<string,int> dict = new dictionary<string,int>(){                 {"januari", 31},                   {"februari", 28},                 {"mars", 31},                 {"april", 30},                 {"maj", 31},                 {"juni", 30},                 {"juli", 31},                 {"augusti", 31},                 {"september", 30},                 {"oktober", 31},                 {"november", 30},                 {"december", 31}             };              int nummberofdays = dict["maj"];              int inmat = int.parse(console.readline());             //get months days = inmat             console.writeline(string.join(",", dict.asenumerable().where(x => x.value == inmat).select(y => y.key).toarray()));             console.readline();          }       }  } ​

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