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 WriteResults(IGradeTracker book1)
{
GradeStatistics book1stats = book1.ComputeStatistics();
foreach (float grade in book1)
{
Console.WriteLine(grade);
}
WriteResult("Name", book1.Name);
WriteResult("Average", book1stats.AverageGrade);
WriteResult("Highest Grade", book1stats.HighestGrade);
WriteResult("Lowest Grade", book1stats.LowestGrade);
WriteResult("Grade", book1stats.LetterGrade);
WriteResult("Description", book1stats.Description);
}