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  1. using System;
  2. using System.Collections.Generic;
  3.  
  4. class SomeBooks
  5. {
  6.     public static void Main()
  7.     {
  8.         // Queue<string> colBestSellers = new Queue<string>();
  9.  
  10. 		// Console.WriteLine("Adding Books to my Collection.");
  11. 		// colBestSellers.Enqueue ("The Heist: A Novel (Gabriel Allon)");
  12.         // colBestSellers.Enqueue ("The Book of Life: A Novel (All Souls Trilogy)");
  13.         // colBestSellers.Enqueue ("Tom Clancy Support and Defend (A Campus Novel)");
  14.         // colBestSellers.Enqueue ("A Prefect Life: A Novel");
  15.         // colBestSellers.Enqueue ("The Goldfinch: A Novel");
  16.  
  17.         // Console.WriteLine("\nDumping All Books from Collection");
  18.         // foreach (string appName in colBestSellers)
  19.         // {
  20.             // Console.WriteLine("   " + appName);
  21.         // }
  22.  
  23. 		// Console.WriteLine("\nRemoving Two Items from Queue");
  24. 		// colBestSellers.Dequeue();
  25. 		// colBestSellers.Dequeue();
  26.  
  27.         // Console.WriteLine("\nDumping All Books from Collection");
  28.         // foreach (string appName in colBestSellers)
  29.         // {
  30.             // Console.WriteLine("   " + appName);
  31.         // }
  32.  
  33. 		// Console.WriteLine("\nAdding three new items to my book collection");
  34. 		// colBestSellers.Enqueue ("Act of War: A Thriller");
  35.         // colBestSellers.Enqueue ("The Silkworm (A Cormoran Strike Novel)");
  36.         // colBestSellers.Enqueue ("Invisible");
  37.  
  38.         // Console.WriteLine("\nDumping All Books from Collection");
  39.         // foreach (string appName in colBestSellers)
  40.         // {
  41.             // Console.WriteLine("   " + appName);
  42.         // }
  43.  
  44. 		// Console.WriteLine("")
  45.  
  46. 	    Stack stkBestSellers = new Stack(); 
  47. 		stkBestSellers.Push ("The Heist: A Novel (Gabriel Allon)");
  48.         stkBestSellers.Push ("The Book of Life: A Novel (All Souls Trilogy)");
  49.         stkBestSellers.Push ("Tom Clancy Support and Defend (A Campus Novel)");
  50.         stkBestSellers.Push ("A Prefect Life: A Novel");
  51.         stkBestSellers.Push ("The Goldfinch: A Novel");
  52.  
  53. 		Console.WriteLine("My stack of books contains:");
  54.  
  55. 		foreach(string bookName in stkBestSellers) { 
  56.             Console.WriteLine("     " + bookName); 
  57.         }
  58.  
  59. 		// Console.WriteLine("Just got a copy of SnagIt 12!  Let's get Pop SnagIt 11");
  60. 		// stkBestSellers.Pop();
  61.  
  62. 		// Console.WriteLine("And let's Push SnagIt 12 in there...");
  63. 		// stkBestSellers.Push("TechSmith SnagIt 12");
  64. 		// Console.WriteLine("\n");
  65.  
  66. 		// Console.WriteLine("Do I still have LINQPad 4 Installed? ... " + stkBestSellers.Contains("LINQPad 4") + "\n");
  67.  
  68.         // Console.WriteLine("Let's pop through the stack:");
  69.  
  70. 		// while(stkBestSellers.Count > 0) { 
  71.             // string appPop = (string) stkBestSellers.Pop (); 
  72.             // Console.WriteLine("Popping {0}", appPop ); 
  73.         // } 
  74. 		// Console.WriteLine("\n");
  75.  
  76. 		// Console.WriteLine("And finally, let's make sure we're completely clean by issuing a clear.");
  77. 		// stkBestSellers.Clear();
  78.  
  79.  
  80. 	}
  81. }
Compilation error #stdin compilation error #stdout 0.03s 33880KB
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stdin
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Standard input is empty
compilation info 
prog.cs(46,13): error CS0305: Using the generic type `System.Collections.Generic.Stack<T>' requires `1' type argument(s)
/usr/lib/mono/gac/System/2.0.0.0__b77a5c561934e089/System.dll (Location of the symbol related to previous error)
prog.cs(47,17): error CS0841: A local variable `stkBestSellers' cannot be used before it is declared
prog.cs(48,9): error CS0841: A local variable `stkBestSellers' cannot be used before it is declared
prog.cs(49,9): error CS0841: A local variable `stkBestSellers' cannot be used before it is declared
prog.cs(50,9): error CS0841: A local variable `stkBestSellers' cannot be used before it is declared
prog.cs(51,9): error CS0841: A local variable `stkBestSellers' cannot be used before it is declared
prog.cs(55,44): error CS0841: A local variable `stkBestSellers' cannot be used before it is declared
Compilation failed: 7 error(s), 0 warnings
stdout
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Standard output is empty
https://ideone.com/MwxssF
Collection of Installed Applications - Stack
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
public

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