public static void RenderStatistics(IBook book)
{
try
{
var statistics = book.ComputeStatistics();
Console.WriteLine($"Grade Book: {book.Name}");
Console.WriteLine($"The average grade is {statistics.Average:N2}");
Console.WriteLine($"The highest grade is {statistics.HighestGrade:N2}");
Console.WriteLine($"The lowest grade is {statistics.LowestGrade:N2}");
Console.WriteLine($"The letter grade is {statistics.Letter}");
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
}
}