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Courses Plus Student 1,556 PointsIn the Program class, add a public static method named DeserializeWeather that returns a List<WeatherForecast> and takes
In the Program class, add a public static method named DeserializeWeather that returns a List<WeatherForecast> and takes a string fileName parameter. Create a new List<WeatherForecast> variable named weatherForecasts and return it.
Please help
using System;
using System.IO;
using System.Collections.Generic;
namespace Treehouse.CodeChallenges
{
public class Program
{
public static void Main(string[] arg)
{
}
public static string DeserializeWeather(string fileName)
{
var weatherForecasts = new List<WeatherForecast>();
return weatherForecasts;
}
public static WeatherForecast ParseWeatherForecast(string[] values)
{
var weatherForecast = new WeatherForecast();
weatherForecast.WeatherStationId = values[0];
DateTime timeOfDay;
if (DateTime.TryParse(values[1], out timeOfDay))
{
weatherForecast.TimeOfDay = timeOfDay;
}
Condition condition;
if (Enum.TryParse(values[2], out condition))
{
weatherForecast.Condition = condition;
}
int temperature;
if (int.TryParse(values[3], out temperature))
{
weatherForecast.Temperature = temperature;
}
double precipitation;
if (double.TryParse(values[4], out precipitation))
{
weatherForecast.PrecipitationChance = precipitation;
}
if (double.TryParse(values[5], out precipitation))
{
weatherForecast.PrecipitationAmount = precipitation;
}
return weatherForecast;
}
}
}
using System;
/* Sample JSON
[
{
"weather_station_id": "HGKL8Q",
"time_of_day": "06/11/2016 0:00",
"condition": "Rain",
"temperature": 53,
"precipitation_chance": 0.3,
"precipitation_amount": 0.03
},
{
"weather_station_id": "HGKL8Q",
"time_of_day": "06/11/2016 6:00",
"condition": "Cloudy",
"temperature": 56,
"precipitation_chance": 0.08,
"precipitation_amount": 0.01
},
{
"weather_station_id": "HGKL8Q",
"time_of_day": "06/11/2016 12:00",
"condition": "PartlyCloudy",
"temperature": 70,
"precipitation_chance": 0,
"precipitation_amount": 0
},
{
"weather_station_id": "HGKL8Q",
"time_of_day": "06/11/2016 18:00",
"condition": "Sunny",
"temperature": 76,
"precipitation_chance": 0,
"precipitation_amount": 0
},
{
"weather_station_id": "HGKL8Q",
"time_of_day": "06/11/2016 19:00",
"condition": "Clear",
"temperature": 74,
"precipitation_chance": 0,
"precipitation_amount": 0
}
]
*/
namespace Treehouse.CodeChallenges
{
public class WeatherForecast
{
public string WeatherStationId { get; set; }
public DateTime TimeOfDay { get; set; }
public Condition Condition { get; set; }
public int Temperature { get; set; }
public double PrecipitationChance { get; set; }
public double PrecipitationAmount { get; set; }
}
public enum Condition
{
Rain,
Cloudy,
PartlyCloudy,
PartlySunny,
Sunny,
Clear
}
}
3 Answers
D Elis
13,571 PointsWorking code: using System; using System.IO; using System.Collections.Generic; using Newtonsoft.Json;
namespace Treehouse.CodeChallenges { public class Program { public static void Main(string[] arg) { }
public static WeatherForecast ParseWeatherForecast(string[] values)
{
var weatherForecast = new WeatherForecast();
weatherForecast.WeatherStationId = values[0];
DateTime timeOfDay;
if (DateTime.TryParse(values[1], out timeOfDay))
{
weatherForecast.TimeOfDay = timeOfDay;
}
Condition condition;
if (Enum.TryParse(values[2], out condition))
{
weatherForecast.Condition = condition;
}
int temperature;
if (int.TryParse(values[3], out temperature))
{
weatherForecast.Temperature = temperature;
}
double precipitation;
if (double.TryParse(values[4], out precipitation))
{
weatherForecast.PrecipitationChance = precipitation;
}
if (double.TryParse(values[5], out precipitation))
{
weatherForecast.PrecipitationAmount = precipitation;
}
return weatherForecast;
}
public static List<WeatherForecast> DeserializeWeather(string fileName)
{
var weatherForecasts = new List<WeatherForecast>();
using (var reader = new StreamReader(fileName))
using (var jsonReader = new JsonTextReader(reader))
{
var serializer = new JsonSerializer();
weatherForecasts = serializer.Deserialize<List<WeatherForecast>>(jsonReader);
}
return weatherForecasts;
}
}
}
Steven Parker
231,275 PointsThe instructions say that the method *"returns a List<WeatherForecast>
", which this code does inside the method body; but the declaration indicates the return value to be a string
instead.
Just change the return type in the declaration and you'll pass task 1:
public static List<WeatherForecast> DeserializeWeather(string fileName)
Deji Adeyemo
5,146 Pointspublic static List<WeatherForecast> DeserializeWeather (string fileName)
{
var weatherForecasts = new List<WeatherForecast>();
return weatherForecasts;
}