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  1. using System;
  2. using System.Linq;
  3.  
  4. public class Test
  5. {
  6. 	public class HelloClass
  7. 	{
  8. 		public int Value { get; set; }
  9. 	}
  10. 	public static void Main()
  11. 	{
  12. 		object[] test = new object[6];
  13. 		test[0] = "Hello,Ken";
  14. 		test[1] = 3.1415;
  15. 		test[2] = "Hello,Taro";
  16. 		test[3] = "Hi,Yoko";
  17. 		test[4] = 27182;
  18. 		test[5] = new HelloClass();
  19.  
  20.         var xhellos = 
  21.             test
  22.               .Where(o => o != null)
  23.               .Select(o => o.ToString())
  24.               .Where(o => o.Contains("Hello"))
  25.               ;
  26.  
  27. 		var hellos = 
  28. 		  test
  29. 			.OfType<string>()
  30. 			.Where(o => o.Contains("Hello"))
  31. 			;
  32.  
  33. 		foreach(var hello in hellos) {
  34. 			Console.WriteLine(hello);
  35. 		}
  36. 	}
  37. }
Success #stdin #stdout 0.04s 24016KB
comments (?)
stdin
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Standard input is empty
stdout
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Hello,Ken
Hello,Taro
https://ideone.com/WOxBjD
boxing > Contains() : OK (improved)
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
public

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