public HeatIndexDisplay(WeatherData weatherData)
{
this.weatherData = weatherData;
weatherData.RegisterObserver(this);
}
public StatisticsDisplay(WeatherData weatherData)
{
this.weatherData = weatherData;
weatherData.RegisterObserver(this);
}
/**
* 构造函数
* @param weatherData
*/
public CurrentConditionsDisplay(WeatherData weatherData)
{
this.weatherData = weatherData;
weatherData.RegisterObserver(this);
}
