如何用while循環填充數組？

Question

我有一塊這樣的代碼，我想通過使用一段時間插入數據。

Weather weather_data[] = new Weather[]{ 
       new Weather(0, "Cloudy"), 
       new Weather(0, "Showers"), 
       new Weather(0, "Snow"), 
       new Weather(0, "Storm"), 
       new Weather(0, "Sunny") 
}; 

如何使用一段時間填寫此列表？

感謝

Answer 1

試試這個：

Weather weather_data[] = new Weather[5]; 

int i = 0; 
while(i < weather_data.length){ 
    //fill array [i] 
    i++; 
} 

Answer 2

我知道你是想以填補以下字符串數組作爲基地的數組：

String[] weatherTypes = {"Cloudy","Showers","Snow","Storm","Sunny"}; 

然後，你可以這樣做：

int i=0; 
Weather[] weather_data = new Weather[]; 
for (String weatherType: weatherTypes){ 
    weather_data[i] = new Weather(0,weatherType); 
    i++; 
} 

你可以使用也可以使用一個列表：

List<Weather> weather_data = new ArrayList<Weather>(); 
for (String weatherType: weatherTypes){ 
    weather_data.add(new Weather(0,weatherTypes)); 
} 

Answer 3

Weather[] weather_data = new Weather[5]; 

public void addWeatherData(Weather newWeather) { 
    int counter = 0; 
    while (counter < weather_data.length) { 
     if (weather_data[counter] == null) { 
      weather_data[counter] = newWeather; 
      return; 
     } 
     counter++; 
    } 
}