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  1. using System;
  2.  
  3. class ClaseA
  4. {
  5.   protected virtual void F()
  6.   {
  7.     Console.WriteLine ("X.F");
  8.   }
  9.  
  10.   protected virtual void F2()
  11.   {
  12.     Console.WriteLine ("X.F2");
  13.   }
  14. }
  15.  
  16. class ClaseB : ClaseA
  17. {
  18.     sealed protected override void F()
  19.     {
  20.         Console.WriteLine ("Y.F");
  21.     }
  22.  
  23.     protected override void F2()
  24.     {
  25.         Console.WriteLine ("X.F3");
  26.     }
  27. }
  28.  
  29. class ClaseC : ClaseB
  30. {
  31.     // Attempting to override F causes compiler error CS0239
  32.     // protected override void F() { Console.WriteLine ("C.F"); }
  33.  
  34.     // Overriding F2 is allowed
  35.     protected override void F2()
  36.     {
  37.         Console.WriteLine ("Z.F2");
  38.     }
  39.  
  40.     public static void Main ()
  41.     {
  42.  
  43.     }
  44. }
Success #stdin #stdout 0.01s 33528KB
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stdout 
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https://ideone.com/TnFMk0
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
secret

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