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  1. using System;
  2.  
  3. public class Test
  4. {
  5.  
  6.     static void Swap(ref string a, ref string b) {
  7.         string c = b;
  8.         b = a;
  9.         a = c;
  10.     }
  11.  
  12. 	public static void Main()
  13. 	{
  14. 	    string a = "a";
  15. 	    string b = "b";
  16. 	    string alsoA = a;
  17. 	    Swap(ref a, ref b);
  18. 	    Console.WriteLine(a); // B
  19. 	    Console.WriteLine(b); // A
  20. 	    Console.WriteLine(alsoA); // A
  21. 	}
  22. }
Success #stdin #stdout 0.04s 23912KB
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stdin
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Standard input is empty
stdout
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b
a
a
https://ideone.com/LlzsDY
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
public

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