C # constructor and initialization list

1   //  Namespace Declaration  2   Using  System;  3   4   //  Helper class  5   Class  Outputclass  6   {  7       String Mystring;  8   9       //  Constructor  10       Public Outputclass ( String  Inputstring)  11   {  12 Mystring = Inputstring;  13   }  14  15       //  This points to a specific object, which produces calls to its own constructor with parameters.  16       Public Outputclass (): This ( "  Default string  "  )  17   {  18   }  19   20       // Instance method  21       Public   Void  Printstring ()  22   {  23 Console. writeline ( "  {0}  "  , Mystring );  24   }  25   26       // Destructor  27 ~ Outputclass ()  28   {  29           //  Some resource cleanup routines  30   }  31   }  32   33   //  Program start class  34  Class  Exampleclass  35   {  36       //  Main begins program execution.  37       Public   Static   Void  Main ()  38   {  39           //  Instance of outputclass 40 Outputclass outcl = New  Outputclass ();  41           42 Outputclass outc2 = New Outputclass ( "  This is printed by the output class.  "  );  43   44           //  Call output class 'method  45  Outcl. printstring ();  46   47   Outc2.printstring ();  48   }  49 }