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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4.  
  5. public class Test
  6. {
  7. 	public static void Main()
  8. 	{
  9. 		Print(new[] { 1, 2, 3, 4 });
  10. 		Print(new[] { "hello", "world" });
  11. 		Print(new[] { "just one!" });
  12. 	}
  13.  
  14.         public static void Print<T>(IEnumerable<T> collection) {
  15.             if (collection.Any()) {
  16.                 var seenFirst = false;
  17.                 T prev = default(T);
  18.                 foreach (var current in collection) {
  19.                     if (seenFirst) Foo(prev);
  20.                     seenFirst = true;
  21.                     prev = current;
  22.                 }
  23.                 Bar(prev);
  24.             }
  25.         }
  26.  
  27.         public static void Foo(object o) { Console.WriteLine("Foo: {0}", o); }
  28.         public static void Bar(object o) { Console.WriteLine("Bar: {0}", o); }
  29. }
  30.  
Success #stdin #stdout 0.04s 38080KB
comments (?)
stdin
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Standard input is empty
stdout
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Foo: 1
Foo: 2
Foo: 3
Bar: 4
Foo: hello
Bar: world
Bar: just one!
https://ideone.com/6bdeE
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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