Switch on String

using System; /*from   java2  s.  c  o  m*/
 
class MainClass {  
  public static void Main() {  
    string[] strs = { "one", "two", "three", "two", "one" }; 
 
    foreach(string s in strs) { 
      switch(s) { 
        case "one": 
          Console.Write(1); 
          break; 
        case "two": 
          Console.Write(2); 
          break; 
        case "three": 
          Console.Write(3); 
          break; 
      } 
    } 
    Console.WriteLine(); 
 
  } 
}