// Event handler
 public void HandleWhenExceedSpeed(Car source, CarExceedSpeedEventArgs e)
 {
     System.Console.WriteLine("{1} : You are driving at {0}. Slow down!",
                              source.Speed, e.WhenViolate);
 }
 // Event handler
 public void HandleWhenExceedSpeed(Car source, CarExceedSpeedEventArgs e)
 {
     System.Console.WriteLine("{1} : You are driving at {0}. Slow down!",
         source.Speed, e.WhenViolate);
 }