public Manager(ListBox reading, ListBox average, ListBox cast) { temp = new TempMointer(); hum = new HumidityMointor(); pre = new PreMointor(); readingob = new ReadingObserver(reading); avgob = new AvgReading(average); fc = new ForecastObserver(cast); readingob.Register(temp); avgob.Register(temp); fc.Register(temp); readingob.Register(hum); avgob.Register(hum); fc.Register(hum); readingob.Register(pre); avgob.Register(pre); fc.Register(pre); }