public CeilingFan(string location)
 {
     this.location = location;
     speed         = FanVelocities.OFF;
 }
 public void Off()
 {
     speed = FanVelocities.OFF;
 }
 public void Low()
 {
     speed = FanVelocities.MEDIUM;
 }
 public void Medium()
 {
     speed = FanVelocities.MEDIUM;
 }
 public void High()
 {
     speed = FanVelocities.HIGH;
 }
 public void Execute()
 {
     prevSpeed = ceilingFan.Speed;
     ceilingFan.High();
 }