public override GradeStatistics ComputeStatistics()
{
Console.WriteLine("GradeBook::ComputeStatistics");
GradeStatistics stats = new GradeStatistics();
float sum = 0;
foreach (float grade in grades)
{
//stats.AverageGrade = sum / grades.Count;
stats.HighestGrade = Math.Max(grade, stats.HighestGrade);
stats.LowestGrade = Math.Min(grade, stats.LowestGrade);
sum += grade;
}
stats.AverageGrade = sum / grades.Count;
return(stats);
}
static void Main(string[] args)
{
//SpeechSynthesizer synth = new SpeechSynthesizer();
//synth.Speak("Hello! This is the gradebook program");
//GradeBook book = new GradeBook();
GradeBook book = new ThrowAwayGradeBook();
// this is legal since its a type
GetBookName(book);
//book.Name = "Scott's Grade Book";
// if field is public
//book.Name = null;
// property ignores this
Console.WriteLine(book.Name);
AddingGrades(book);
StreamWriter outputFile = File.CreateText("gradesz.txt");
book.WriteGrades(outputFile);
outputFile.Close();
// this never created the text
GradeStatistics stats = book.ComputeStatistics();
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest", (int)stats.HighestGrade);
WriteResult("Lowest", stats.LowestGrade);
WriteResult(stats.Description, stats.LetterGrade);
}