public override GradeStatististics ComputeStatistics()
{
Console.WriteLine("Gradebook::ComputeStatistics");
GradeStatististics stats = new GradeStatististics();
//stats.HighestGrade = 0;
float sum = 0;
foreach (float grade in grades)
{
//if (grade > stats.HighestGrade)
//{
// stats.HighestGrade = grade;
//}
stats.HighestGrade = Math.Max(grade, stats.HighestGrade);
//stats.LowestGrade = Math.Min(grade, stats.HighestGrade);
stats.LowestGrade = Math.Min(grade, stats.LowestGrade);
sum = sum + grade; //lub sum += grade
}
stats.AverageGrade = sum / grades.Count;
return(stats);
}
private static void WriteResults(IGradeTracker book)
{
GradeStatististics stats = book.ComputeStatistics();
foreach (float grade in book)
{
Console.WriteLine(grade);
}
Console.WriteLine(book.Name);
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest", stats.HighestGrade);
WriteResult("Lowest", stats.LowestGrade);
WriteResult("Grade", stats.LetterGrade);
WriteResult("My opinion", stats.Description);
}