An example of C# delegates and lambda expressions and their use.

DelegatesAndLambdaExpressions.cs

class Delegate
{
  delegate int BinOp(int x, int y);

  BinOp Plus()
  {
    return (x, y) => x + y;
  }

  int Calculate(int x, int y)
  {
    return Plus()(x, y);
  }
  
  void Work()
  {
    BinOp Times = (x, y) => x * y;
    int z = Times(2, 2);
  }
}