private static void SaveGrades(IGradeTrackes book)
{
using (StreamWriter outputFile = File.CreateText("grades.txt"))
{
book.WriteGrades(outputFile);//if i use like this(methods with using keyword) i dont have to use file close method.
//outputFile.Close();//it otomaticaly close by its self.
}
}
static void Main(string[] args)
{
IGradeTrackes book = CreateGradeBook();
GetBookName(book);
AddGrade(book);
SaveGrades(book);
WriteResults(book);
}
private static void WriteResults(IGradeTrackes book)
{
GradeStatistics statistics = book.ComputeStatistics();
Console.WriteLine("Grades:");
foreach (float grade in book)
{
Console.WriteLine(grade);
}
WriteResult("Average:", statistics.AverageGrade);
WriteResult("Highest:", statistics.HighestGrade);
WriteResult("Lowest:", statistics.LowestGrade);
WriteResult(statistics.Description, statistics.LetterGrade);
}
private static void GetBookName(IGradeTrackes book)
{
Console.WriteLine(book.Name);
}
private static void AddGrade(IGradeTrackes book)
{
book.AddGrade(70);
book.AddGrade(75.8f);
book.AddGrade(48);
}