c# - Why writing items to console writes only namespace and class name instead of data? -


this question has answer here:

probably title doesn't sound of guys (skilled programmers), i'm on 3rd week of learning c# fundamentals , cant figure out how solve next task. shall store temperatures bunch of cities, asking user cityname first , actual temp in city. stuff should saved in list<> , shall use class , constructor. when try print out result (using foreach) prints out name of namespace , name of class "task_5.city" whats wrong code:

public class city //class {     public string cityname { get; set; }     public int temperature { get; set; }      public city(string name, int temp)//konstruktor      {         this.cityname = name;         this.temperature = temp;     }  }  class program {     static void main(string[] args)     {         var citylist = new list<city>();           console.writeline("what city?");         string cityname = console.readline();         console.writeline("what temperature city?");         int temp = convert.toint32(console.readline());          city mycity = new city(cityname, temp);         citylist.add(mycity);           foreach (var item in citylist)         {             console.writeline(item);         }          console.readline();      } }

you passing object console.writeline(item) instead of passing string. console.writeline invokes tostring() method of object default returns namespace+class name. can override behavior next:

    public class city //class     {         public string cityname { get; set; }         public int temperature { get; set; }          public city(string name, int temp)//konstruktor          {             this.cityname = name;             this.temperature = temp;         }          public override string tostring()         {             return string.format("{0} {1}", cityname, temperature);         }      }

or can use overload of writeline method:

console.writeline("{0} {1}", item.cityname, item.temperature);

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