// Implement the subsystems.
public Facade()
{
_one = new SubsystemOne();
_two = new SubsystemTwo();
_three = new SubsystemThree();
_four = new SubsystemFour();
}
public Facade()
{
subsystemOne = new SubsystemOne();
subsystemTwo = new SubsystemTwo();
subsystemThree = new SubsystemThree();
}