public void Execute()
{
prevSpeed = fan.GetSpeed();
fan.Off();
}
public void Execute()
{
prevSpeed = fan.GetSpeed();
fan.High();
}
public void Execute()
{
prevSpeed = fan.GetSpeed();
fan.Medium();
}
public void Excecute()
{
prevspeed = ceilingFan.GetSpeed();
ceilingFan.High();
}