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Program.cs
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Program.cs
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using System;
using System.IO;
namespace Scenario4
{
class Program
{
static void Main(string[] args)
{
string inputFile = FindFullPath("input.json");
string jsonString = File.ReadAllText(inputFile);
double average = AverageGrades(jsonString);
Console.WriteLine($"Science : {average}");
Console.WriteLine("Press any key to continue ...");
Console.ReadLine();
}
// TODO:
// 1) Create a document object model (DOM) view of the json string and use it to calculate and
// return the Science class average of all the students' grades. If a student's grade is missing, assume it is 70.
// Note: Feel free to open input.json to view its contents, but do NOT modify it.
// Note: Assume the JSON schema is valid and will not change.
// Note: Do not use the JsonSerializer to deserialize the string in this scenario.
private static double AverageGrades(string jsonString)
{
double sum = 0;
int count = 0;
// <Add code here>
double average = sum / count;
return average;
}
private static string FindFullPath(string fileName)
{
string dir = Directory.GetCurrentDirectory();
string fullPath = dir + "\\" + fileName;
int count = 0;
while (true)
{
if (count > 5)
{
throw new FileNotFoundException($"The file necessary for this scenario could not be found. Looking for {fileName}.");
}
if (File.Exists(fullPath))
{
break;
}
if (dir.EndsWith("Scenario4\\"))
{
throw new FileNotFoundException($"The file necessary for this scenario could not be found (stopped searching at project root). Looking for {fileName}.");
}
dir = Path.GetFullPath(Path.Combine(dir, @"..\"));
fullPath = dir + "\\" + fileName;
count++;
}
return fullPath;
}
}
}