Build a weather program

Hey Guys.

I have a project in a c# class where i have to build an app that needs to control the following things: Temp, wind speed, and rain for 10 chosen stations in Denmark.

The following has to be able to extract from each station.
-Highest temp on a given day
-Lowest temp on a given day
-Median temp on a given day
-Higest windspeed on a given day
-Lowest windspeed on a given day
-Median windspeed on a given day
-Highest amount of rain on a given day
-Lowest amount of rain on a given day
-The median of fallen rain on a given day

The "given day" just have to be a random day but the same one for all.

I'm lost on this one. I don't really know how to start building the app.. Any ideas?
We don't need to use internet based API's and all the data can be "fictional"
Any help would be gratefully received.!!
Thanks ..

Well, assuming it's a console app and that the statistics are to be input from the console rather than a file, I would suggest something like the following.

When reading in a lot of data like this, it's best to apply reasonableness checks to the data otherwise, if you make a mistake, you have to start again from scratch:

using System;

class Weather

{

static Random rand = new Random();

static void Main()

{

int n = 10;

string[] station = new string[n];

double[] highTemp = new double[n];

double[] lowTemp = new double[n];

double[] medTemp = new double[n];

double[] highWind = new double[n];

double[] lowWind = new double[n];

double[] medWind = new double[n];

double[] highRain = new double[n];

double[] lowRain = new double[n];

double[] medRain = new double[n];

// get random date in 2013

int today = DateTime.Today.DayOfYear;

int doy = rand.Next(1, today); // note excludes today

DateTime dt = new DateTime(2012, 12, 31).AddDays(doy);

Console.WriteLine("Please enter weather statistics for {0}\n", dt.ToLongDateString());

for(int i = 0; i < n; i++)

{

Console.Write(" Station name : ");

station[i] = Console.ReadLine();

}

while (station[i] == "");

bool isValid;

{

Console.Write(" Highest temperature deg C : ");

isValid = double.TryParse(Console.ReadLine(), out highTemp[i]);

}

while (!isValid || highTemp[i] < -40 || highTemp[i] > 40);

{

Console.Write(" Lowest temperature deg C : ");

isValid = double.TryParse(Console.ReadLine(), out lowTemp[i]);

}

while (!isValid || lowTemp[i] < -40 || lowTemp[i] > 40);

{

Console.Write(" Median temperature deg C : ");

isValid = double.TryParse(Console.ReadLine(), out medTemp[i]);

}

while (!isValid || medTemp[i] < -40 || medTemp[i] > 40);

{

Console.Write(" Highest windspeed k/s : ");

isValid = double.TryParse(Console.ReadLine(), out highWind[i]);

}

while (!isValid || highWind[i] < 0 || highWind[i] > 250);

{

Console.Write(" Lowest windspeed k/s : ");

isValid = double.TryParse(Console.ReadLine(), out lowWind[i]);

}

while (!isValid || lowWind[i] < 0 || lowWind[i] > 250);

{

Console.Write(" Median windspeed k/s : ");

isValid = double.TryParse(Console.ReadLine(), out medWind[i]);

}

while (!isValid || medWind[i] < 0 || medWind[i] > 250);

{

Console.Write(" Highest rainfall mm : ");

isValid = double.TryParse(Console.ReadLine(), out highRain[i]);

}

while (!isValid || highRain[i] < 0 || highRain[i] > 1000);

{

Console.Write(" Lowest rainfall mm : ");

isValid = double.TryParse(Console.ReadLine(), out lowRain[i]);

}

while (!isValid || lowRain[i] < 0 || lowRain[i] > 1000);

{

Console.Write(" Median rainfall mm : ");

isValid = double.TryParse(Console.ReadLine(), out medRain[i]);

}

while (!isValid || medRain[i] < 0 || medRain[i] > 1000);

Console.WriteLine();

}

// do something with these stats

Console.ReadKey();

}

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes13y ago
Accepted answer
Well, assuming it's a console app and that the statistics are to be input from the console rather than a file, I would suggest something like the following.

When reading in a lot of data like this, it's best to apply reasonableness checks to the data otherwise, if you make a mistake, you have to start again from scratch:

using System;

class Weather
{
static Random rand = new Random();

static void Main()
{
int n = 10;
string[] station = new string[n];
double[] highTemp = new double[n];
double[] lowTemp = new double[n];
double[] medTemp = new double[n];
double[] highWind = new double[n];
double[] lowWind = new double[n];
double[] medWind = new double[n];
double[] highRain = new double[n];
double[] lowRain = new double[n];
double[] medRain = new double[n];

// get random date in 2013
int today = DateTime.Today.DayOfYear;
int doy = rand.Next(1, today); // note excludes today
DateTime dt = new DateTime(2012, 12, 31).AddDays(doy);

Console.WriteLine("Please enter weather statistics for {0}\n", dt.ToLongDateString());

for(int i = 0; i < n; i++)
{
do
{
Console.Write(" Station name : ");
station[i] = Console.ReadLine();
}
while (station[i] == "");

bool isValid;

do
{
Console.Write(" Highest temperature deg C : ");
isValid = double.TryParse(Console.ReadLine(), out highTemp[i]);
}
while (!isValid || highTemp[i] < -40 || highTemp[i] > 40);

do
{
Console.Write(" Lowest temperature deg C : ");
isValid = double.TryParse(Console.ReadLine(), out lowTemp[i]);
}
while (!isValid || lowTemp[i] < -40 || lowTemp[i] > 40);

do
{
Console.Write(" Median temperature deg C : ");
isValid = double.TryParse(Console.ReadLine(), out medTemp[i]);
}
while (!isValid || medTemp[i] < -40 || medTemp[i] > 40);

do
{
Console.Write(" Highest windspeed k/s : ");
isValid = double.TryParse(Console.ReadLine(), out highWind[i]);
}
while (!isValid || highWind[i] < 0 || highWind[i] > 250);

do
{
Console.Write(" Lowest windspeed k/s : ");
isValid = double.TryParse(Console.ReadLine(), out lowWind[i]);
}
while (!isValid || lowWind[i] < 0 || lowWind[i] > 250);

do
{
Console.Write(" Median windspeed k/s : ");
isValid = double.TryParse(Console.ReadLine(), out medWind[i]);
}
while (!isValid || medWind[i] < 0 || medWind[i] > 250);

do
{
Console.Write(" Highest rainfall mm : ");
isValid = double.TryParse(Console.ReadLine(), out highRain[i]);
}
while (!isValid || highRain[i] < 0 || highRain[i] > 1000);

do
{
Console.Write(" Lowest rainfall mm : ");
isValid = double.TryParse(Console.ReadLine(), out lowRain[i]);
}
while (!isValid || lowRain[i] < 0 || lowRain[i] > 1000);

do
{
Console.Write(" Median rainfall mm : ");
isValid = double.TryParse(Console.ReadLine(), out medRain[i]);
}
while (!isValid || medRain[i] < 0 || medRain[i] > 1000);

Console.WriteLine();
}

// do something with these stats

Console.ReadKey();
}
}
Mathias13y ago
Wow ! What an amazing answer. !
Thank you so much!! And for taking your time to do such a long one too!
This was a huge help!