Udacity Android JSON Parser

WeatherDataParser.java

// Udacity's code

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

public class WeatherDataParser {

	/**
	 * Given a string of the form returned by the api call:
	 * http://api.openweathermap.org/data/2.5/forecast/daily?q=94043&mode=json&units=metric&cnt=7 
	 * retrieve the maximum temperature for the day indicated by dayIndex
	 * (Note: 0-indexed, so 0 would refer to the first day).
	 */
	public static double getMaxTemperatureForDay(String weatherJsonStr, int dayIndex)
		throws JSONException {

        final JSONObject json = new JSONObject(weatherJsonStr);
        final JSONArray list = json.getJSONArray("list");
        final JSONObject dayInfo = list.getJSONObject(dayIndex);
        final JSONObject tempInfo = dayInfo.getJSONObject("temp");
       
        return tempInfo.getDouble("max");
    }
    
    
    /**
    * Scala syntax looks almost like this:
    * val max = weatherJsonStr \ "list" \ dayIndex \ "temp" \"max"
    */
}