private static void SaveGrades(GradeTracker book)
{
using (StreamWriter outputFile = File.CreateText("grades.txt"))
{
book.WriteGrades(outputFile);
}
}
private static void AddingGrades(GradeTracker book)
{
book.AddGrade(91);
book.AddGrade(89);
book.AddGrade(98);
book.AddGrade(60);
}
static void Main(string[] args)
{
//GradeBook Book = new GradeBook();
//GradeStatistics Stats = new GradeStatistics();
//Book.NameChanged += new NameChangedDelegate(OnNameChanged); // overwritten with OnNameChanged2 except with +=
//Book.NameChanged += new NameChangedDelegate(OnNameChanged2); // event keyword not = only +=
//Book.NameChanged = null; //don't use
//Book.NameChanged += OnNameChanged; //automatically create the delegate instance behind the scene will know it is a NameChangedDelegate
//Book.NameChanged += OnNameChanged2; //automatically create the delegate instance behind the scene will know it is a NameChangedDelegate
//Book.NameChanged += OnNameChanged2;
//Book.NameChanged -= OnNameChanged2; //will subscribe twice and remove once -= unscubscribe
GradeTracker book = CreateGradeBook();
GradeStatistics Stats = new GradeStatistics();
book.NameChanged += OnNameChanged; // Subscribe to event.
//GetBookName(Book);
AddGrades(book);
//Book.WriteGrades(Console.Out);
Stats = Save(book);
WriteResults(book, Stats);
}
static void Main(string[] args)
{
GradeTracker book = CreateGradeBook();
AddGrades(book);
SaveGrades(book);
WriteResults(book);
}
// Becuase of the use of the virtual keyword in GradeBook.cs
// The behaviour of this method will depend on the type of GradeBook
// being passed to this method, that is of course assuming that we
// have overridden the ComputeStatistics method
private static void WriteResults(GradeTracker book)
{
GradeStatistics stats = book.ComputeStatistics();
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest", stats.HighestGrade);
WriteResult("Lowest", stats.LowestGrade);
WriteResult(stats.Description, stats.LetterGrade);
}
private static void AddGrades(GradeTracker book)
{
book.NameChanged += OnNameChanged;
book.Name = "Nathan's Grade Book"; //writing a reference to a string into this field
book.Name = "Grade Book";
book.AddGrade(91);
book.AddGrade(89.5f);
book.AddGrade(75);
}
private static void GetBookName(GradeTracker book)
{
try
{
Console.WriteLine("Enter a name");
book.Name = Console.ReadLine();
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
}
private static void WriteResults(GradeTracker book)
{
GradeStatistics stats = book.ComputeStatistics();
Console.WriteLine(book.Name);
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest", (int)stats.HighestGrade);
WriteResult("Lowest", stats.LowestGrade);
WriteResult(stats.Description, stats.LetterGrade);
WriteResult("Params", stats.LowestGrade, 5, 6, 7); //Params - can pass an array of variable length
Console.Read();
}
/*
* private static void WriteGradesInBytes(GradeTracker book)
* {
*
* foreach (float grade in book.grades)
* {
* WriteasBytes((int)grade);
* }
* }*/
private static void WriteResults(GradeTracker book)
{
GradeStatistics stats = book.ComputeStatistics();
WriteResult("Average", (int)stats.AverageGrade);
WriteResult("AverageFloat", stats.AverageGrade);
WriteResult("AverageLetterGrade", stats.LetterGrade);
WriteResult("AverageLetterDescription", stats.Description);
WriteResult(stats.Description, stats.LetterGrade);
Console.WriteLine(stats.AverageGrade);
Console.WriteLine(stats.LowestGrade);
Console.WriteLine(stats.HighestGrade);
}
private static void WriteResults(GradeTracker Book, GradeStatistics Stats)
{
foreach (float grade in Book)
{
Console.WriteLine(grade);
}
Console.WriteLine(Book.Name);
WriteResult("Average", Stats.AverageGrade);
WriteResult("Low", Stats.LowGrade);
WriteResult("High", (int)Stats.HighGrade); //float will be truncated not rounded.
WriteResult("", Stats.LetterGrade);
Console.ReadLine();
}
static void Main(string[] args)
{
GradeTracker book = CreateGradeBook();
book.AddGrades(new List <double>()
{
91, 90, 87.5
});
book.WriteGrades();
GradeStatistics stats = book.ComputeStats();
WriteResult("Average", stats.AverageGrade);
}
private static void GetBookName(GradeTracker book)
{
try
{
Console.WriteLine("Enter a name");
book.Name = Console.ReadLine();
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
catch (NullReferenceException)
{
Console.WriteLine("Something went wrong");
}
}
static void Main(string[] args)
{
GradeTracker book = CreateGradeBook();
book.NameChanged += new NameChangedDelegate(OnNameChanged); // Add methods to delegate with +=
book.NameChanged += OnNameChanged2; // Can also be written like this.
//book.NameChanged = null; NameChanged is an event. Events can only add or subtract a subscriber.
book.Name = null;
book.Name = "Stephen's Grade Book";
AddGrades(book);
StreamWriter outputFile = File.CreateText("grades.txt");
book.WriteGrades(outputFile);
WriteResults(book);
}
static void Main(string[] args)
{
GradeTracker book = CreateGradeBook();
NewMethod(book);
//book.NameChanged += new NameChangedDelegate(OnNameChanged);
// book.NameChanged = null; //Error because of event. A example to not use delegate
//book.NameChanged += OnNameChanged;
//book.NameChanged += OnNameChanged2; // No need to use new NameChangedDelegate
//book.Name = "Ravi's Grade Book";
//book.Name = null;
AddGrades(book);
WriteResults(book);
SaveGrades(book);
}
private static void GetBookName(GradeTracker book)
{
try
{
Console.WriteLine("What would you like to call your grade book?");
book.Name = Console.ReadLine();
}
catch (AggregateException ex)
{
Console.WriteLine(ex.Message);
}
catch (NullReferenceException)
{
Console.WriteLine("Something went wrong");
}
catch (Exception)
{
Console.WriteLine("Something went wrong");
}
finally
{
Console.WriteLine("Finished");
}
}
private static void AddGrades(GradeTracker book)
{
book.AddGrade(91);
book.AddGrade(89.5f);
book.AddGrade(75);
}
private static void AddGrades(GradeTracker book)
{
book.AddGrade(100);
book.AddGrade(95);
book.AddGrade(60);
}
private static void GetBookName(GradeTracker Book)
{
Book.Name = "Scott's Grade Book";
Book.Name = "Grade Book";
}
private static GradeStatistics Save(GradeTracker Book)
{
return(Book.ComputeStatistics());
}
private static void AddGrades(GradeTracker Book)
{
Book.AddGrade(100);
Book.AddGrade(50.5f);
Book.AddGrade(75);
}