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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	public static void Main()
  6. 	{
  7. 		Context context;
  8.  
  9.               // Three contexts following different strategies
  10.               context = new Context(new ConcreteStrategyA());
  11.               context.ContextInterface();
  12.  
  13.               context = new Context(new ConcreteStrategyB());
  14.               context.ContextInterface();
  15.  
  16.  
  17.               // Wait for user
  18.               Console.ReadKey();
  19. 	}
  20. }
  21.  
  22.  
  23.     abstract class Strategy
  24.       {
  25.         public abstract void AlgorithmInterface();
  26.       }
  27.  
  28.     class ConcreteStrategyA : Strategy
  29.       {
  30.         public override void AlgorithmInterface()
  31.         {
  32.           Console.WriteLine(
  33.             "Called ConcreteStrategyA.AlgorithmInterface()");
  34.         }
  35.       }
  36.  
  37.     class ConcreteStrategyB : Strategy
  38.       {
  39.         public override void AlgorithmInterface()
  40.         {
  41.           Console.WriteLine(
  42.             "Called ConcreteStrategyB.AlgorithmInterface()");
  43.         }
  44.       }
  45.  
  46.     class Context
  47.       {
  48.         private Strategy _strategy;
  49.  
  50.         // Constructor
  51.         public Context(Strategy strategy)
  52.         {
  53.           this._strategy = strategy;
  54.         }
  55.  
  56.         public void ContextInterface()
  57.         {
  58.           _strategy.AlgorithmInterface();
  59.         }
  60.       }
Success #stdin #stdout 0.02s 34760KB
comments (?)
stdin 
Standard input is empty
stdout 
Called ConcreteStrategyA.AlgorithmInterface()
Called ConcreteStrategyB.AlgorithmInterface()
https://ideone.com/O9XnHQ
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
secret

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