public override GradeStatistics ComputeStatistics()
{
GradeStatistics stats = new GradeStatistics();
float sum = 0;
foreach (float grade in _grades)
{
stats.HighestGrade = Math.Max(grade, stats.HighestGrade);
stats.LowestGrade = Math.Min(grade, stats.LowestGrade);
sum += grade;
}
stats.AverageGrade = sum / _grades.Count;
return(stats);
}
private static void WriteResultsToConsole(IGradeTracker book)
{
GradeStatistics stats = book.ComputeStatistics();
foreach (float grade in book)
{
Console.WriteLine(grade);
}
WriteResult("Average Grade", stats.AverageGrade);
//casting
WriteResult("Highest Grade", (int)stats.HighestGrade);
WriteResult("Lowest Grade", stats.LowestGrade);
WriteResult(stats.Description, stats.LetterGrade);
Console.ReadKey();
}