static void Main(string[] args) //static keyword = not associated with an object instance
{
Book book = new Book("Alex's Grade Book"); //parentheses invokes constructor which takes care of initialization
book.AddGrade(88.7);
book.AddGrade(90.5);
book.AddGrade(99.5);
Statictics stats = book.GetStatstics();
Console.WriteLine($"The average grade is {stats.Average:N1}");
Console.WriteLine($"The highest grade is {stats.High:N1}");
Console.WriteLine($"The lowest grade is {stats.Low:N1}");
}
public Statictics GetStatstics()
{
Statictics result = new Statictics();
result.Average = 0.0;
result.High = double.MinValue;
result.Low = double.MaxValue;
foreach (double grade in grades)
{
result.High = Math.Max(grade, result.High);
result.Low = Math.Min(grade, result.Low);
result.Average += grade;
}
result.Average /= grades.Count;
return(result);
}