public void Run() { TextCenter textCenter = new TextCenter(); TextAnalyser analyser = new TextAnalyser(); TextMeasurer measurer = new TextMeasurer(); textCenter.SetPublisher(new EasyTextPublisher()); textCenter.Attach(analyser); textCenter.Attach(measurer); textCenter.WriteText("??"); textCenter.Detach(measurer); textCenter.WriteText("206060"); }