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C# C# Streams and Data Processing Parsing Data Working with Floating-Point Types

Posted by D Elis
D Elis
13,571 Points

Could use some help with C# Streams-Working with floating point numbers

I am stuck on this question

Program.cs 
using System;
using System.IO;

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;
            }
            int temperature;
            if (int.TryParse(values[3], out temperature))
            {
                weatherForecast.Temperature = temperature;
            }
           int v1;
           if(double.TryParse(values[4], out v1)){
               weatherForecast.v1=v1;
           }
           int v2;
           if(double.TryParse(values[5], out v2)){
               weatherForecast.v2=v2;
           }

           return weatherForecast;





        }
    }
}
WeatherForecast.cs 
using System;

/* Sample CSV Data 

weather_station_id,time_of_day,condition,temperature,precipitation_chance,precipitation_amount
HGKL8Q,06/11/2016 0:00,Rain,53,0.3,0.03
HGKL8Q,06/11/2016 6:00,Cloudy,56,0.08,0.01
HGKL8Q,06/11/2016 12:00,PartlyCloudy,70,0,0
HGKL8Q,06/11/2016 18:00,Sunny,76,0,0
HGKL8Q,06/11/2016 19:00,Clear,74,0,0
*/

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
    }
}

2 Answers

Sara Rena Anderson
Sara Rena Anderson
15,045 Points 
// WeatherForecast.cs

using System;

/* Sample CSV Data 

weather_station_id,time_of_day,condition,temperature,precipitation_chance,precipitation_amount
HGKL8Q,06/11/2016 0:00,Rain,53,0.3,0.03
HGKL8Q,06/11/2016 6:00,Cloudy,56,0.08,0.01
HGKL8Q,06/11/2016 12:00,PartlyCloudy,70,0,0
HGKL8Q,06/11/2016 18:00,Sunny,76,0,0
HGKL8Q,06/11/2016 19:00,Clear,74,0,0
*/

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
    }
}

//Program.cs

using System;
using System.IO;

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;
            }
            int temperature;
            if (int.TryParse(values[3], out temperature))
            {
                weatherForecast.Temperature = temperature;
            }

           // create a variable- I created someVariable
           double someVariable;
           // lets get the get the values out and assign them to someVariable
           if (double.TryParse(values[4], out someVariable))
           {
               weatherForecast.PrecipitationChance = someVariable;                                  
           }
           // create a variable- I created someOtherVariable
           double someOtherVariable;
           // lets get the get the values out and assign them to someOtherVariable
           if (double.TryParse(values[5], out someOtherVariable))
           {
               weatherForecast.PrecipitationAmount = someOtherVariable;                                  
           }

            return weatherForecast;
        }
    }
}
D Elis
D Elis
13,571 Points

thanks!

D Elis
D Elis
13,571 Points
D Elis
D Elis
13,571 Points

Challenge Task 2 of 2 In the ParseWeatherForecast method, use double.TryParse to parse the PrecipitationChance and PrecipitationAmount properties from the value of values[4] and values[5] respectively, and add the parsed values to the weatherForecast object. Don't forget to declare the variable to hold the out parameter to pass to the TryParse method.

Sara Rena Anderson
Sara Rena Anderson
15,045 Points

I had a lot of problems with this also. Please see below for what I came up with that worked.