private static void SaveGrades(GradeBook book)
{
StreamWriter outputFile = File.CreateText("grades.txt");
book.WriteGrades(outputFile);
outputFile.Close();
}
public static void Main(string[] args)
{
GradeBook book = new GradeBook();
try
{
Console.WriteLine("Enter a name");
book.Name = Console.ReadLine();
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
book.AddGrade(91);
book.AddGrade(89.5f);
book.AddGrade(75);
book.WriteGrades(Console.Out);
GradeStatistics stats = book.ComputeStatistics();
Console.WriteLine(book.Name);
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest", stats.HighestGrade);
WriteResult("Lowest", stats.LowestGrade);
WriteResult(stats.Description, stats.LetterGrade);
}
private static void SaveGrades(GradeBook book)
{
using (StreamWriter outputFile = File.CreateText("grades.txt"))
{
book.WriteGrades(outputFile);
}
}
static void Main(string[] args)
{
// SpeechSynthesizer synth = new SpeechSynthesizer();
// synth.Speak("Hello, World");
GradeBook book = new GradeBook("Scott's Book");
book.AddGrade(91);
book.AddGrade(89.1f);
book.AddGrade(75f);
book.WriteGrades(Console.Out);
book.Name = "";
GradeStatistics stats = book.ComputeStatistics();
book.NameChanged += OnNameChanged;
book.NameChanged += OnNameChanged;
book.NameChanged += OnNameChanged2;
book.NameChanged -= OnNameChanged;
book.Name = "Allen's Book";
// WriteNames(book.Name);
Console.WriteLine(stats.AverageGrade);
Console.WriteLine(stats.LowestGrade);
Console.WriteLine(stats.HighestGrade);
Console.WriteLine("{0} {1}", stats.LetterGrade, stats.Description);
Console.WriteLine("any key to continue x");
// Console.ReadKey;
}
private static void SaveGrades(GradeBook book)
{
using (StreamWriter outputFile = File.CreateText("grades.txt"))
{
book.WriteGrades(outputFile);
}
}
static void Main(string[] args)
{
SpeechSynthesizer synth = new SpeechSynthesizer();
synth.Speak("What\'s up? I am building this because I love to code");
GradeBook book = CreateGradeBook();
try
{
string[] lines = File.ReadAllLines("grades.txt");
foreach (string line in lines)
{
float grade = float.Parse(line);
book.AddGrade(grade);
}
}
catch (FileNotFoundException)
{
Console.WriteLine("Could not locate the file");
return;
}
catch (UnauthorizedAccessException)
{
Console.WriteLine("No access");
return;
}
book.WriteGrades(Console.Out);
book.NameChanged += OnNameChanged;
book.NameChanged += OnNameChanged2;
try
{
// Console.WriteLine("Please enter a name for the book");
// book.Name = Console.ReadLine();
}
catch (ArgumentException)
{
Console.WriteLine("Invalid Name");
}
Console.WriteLine(book.Name);
GradeStatistics stats = book.ComputeStatistics();
Console.WriteLine(stats.AverageGrade);
WriteBytes(stats.AverageGrade);
Console.WriteLine("{0}, {1}", stats.LetterGrade, stats.Description);
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
}
private static void RunBookApp()
{
GradeBook book = new GradeBook();
// Events
book.NameChanged += new NameChangedDelegate(OnNameChanged);
book.NameChanged += new NameChangedDelegate(OnNameChanged2);
book.NameChanged += OnNameChanged2;
book.NameChanged += OnNameChanged2;
book.NameChanged -= OnNameChanged2;
/// Delegate
Writer w = new Writer(WriteBookName);
book.Name = "My book";
// Exception
try
{
book.Name = "";
}
catch (ArgumentNullException e)
{
Console.WriteLine(e.Message);
}
book.AddGrade(91);
book.AddGrade(84.5f);
GradeBookStatistics stat = book.ComputeStatistics();
w(book);
//WriteBookName(book);
WriteResult("Lowest Grade", stat.Lowest);
WriteResult("Highest Grade", stat.Highest);
WriteResult("Average Grade", stat.Average);
WriteResult("LetterGrade", stat.LetterGrade);
book.WriteGrades(Console.Out);
// Exception
using (StreamWriter sw = File.CreateText("grades.txt"))
{
book.WriteGrades(sw);
sw.Close();
}
}
static void Main(string[] args)
{
GradeBook book = new GradeBook("Borys's Book");
try
{
using (FileStream stream = File.Open("grade.txt", FileMode.Open))
using (StreamReader reader = new StreamReader(stream))
{
string line = reader.ReadLine();
while (line != null)
{
float grade = float.Parse(line);
book.AddGrade(grade);
line = reader.ReadLine();
}
}
}
catch (FileNotFoundException ex)
{
Console.WriteLine("Could not locate the file grades.txt");
return;
}
catch (UnauthorizedAccessException ex)
{
Console.WriteLine("No access");
return;
}
book.WriteGrades(Console.Out);
// dajcie zapętlenie do poprawnego wpisania nazwy dziennika. String.IsNullOrEmpty
try
{
Console.WriteLine("Please enter a name for the book");
book.Name = Console.ReadLine();
}
catch (ArgumentException ex)
{
Console.WriteLine("Invalid Name");
}
GradeStatistics stats = book.ComputeStatistics();
Console.WriteLine(stats.AverageGrade);
Console.WriteLine(stats.HighestGrade);
Console.WriteLine(stats.LowestGrade);
Console.WriteLine("{0} - {1}", stats.LetterGrade, stats.Description);
Console.ReadLine();
}
static void Main(string[] args)
{
//Set default file name, set name if arg is present
string readFile = "data.txt";
if (args.Length > 0)
{
readFile = args[0];
}
//Create new gradebook object, set delegate and event
GradeBook book = new GradeBook("Math")
{
NameChanged = new NameChangedDelegate(OnNameChanged),
};
book.NewNameChanged += new NameChangedEventDelegate(OnNewNameChanged);
//Read the specified file, place grades in gradebook
try
{
using (FileStream stream = File.Open(@"" + readFile, FileMode.Open))
using (StreamReader reader = new StreamReader(stream))
{
string line = reader.ReadLine();
while (line != null)
{
book.AddGrade(float.Parse(line));
line = reader.ReadLine();
}
reader.Close();
stream.Close();
}
}
//Quit if file is not found
catch (FileNotFoundException ex)
{
Console.WriteLine("File not found: " + ex.FileName);
return;
}
//book.Print();
book.SetName("Science");
book.WriteGrades(Console.Out);
book.ComputeStatistics().Print();
book.ComputeStatistics().Print();
}
private static void SaveGrades(GradeBook book)
{
using (StreamWriter outputFile = File.CreateText(book.Name + "_grades.txt"))
{
book.WriteGrades(outputFile, book.Name);
}
/*Using Statement
* When you are using an objectthat encapsulates any
* resources (ie. file, database) you have to make sure
* that when you are done with the object you dispose of it
* The using Statement takes care of that automatically
*/
}
static void Main(string[] args)
{
GradeBook book = new GradeBook("Scott's Book");
try
{
using (FileStream stream = File.Open("grades.txt", FileMode.Open))
using (StreamReader reader = new StreamReader(stream))
{
string line = reader.ReadLine();
while (line != null)
{
float grade = float.Parse(line);
book.AddGrade(grade);
line = reader.ReadLine();
}
}
}
catch (FileNotFoundException ex)
{
Console.WriteLine("Could not locate the file grades.txt");
return;
}
catch (UnauthorizedAccessException ex)
{
Console.WriteLine("No access");
return;
}
book.WriteGrades(Console.Out);
try
{
//Console.WriteLine("Please enter a name for the book");
//book.Name = Console.ReadLine();
}
catch (ArgumentException)
{
Console.WriteLine("Invalid name");
}
GradeStatistics stats = book.ComputeStatistics();
Console.WriteLine(stats.AverageGrade);
Console.WriteLine(stats.LowestGrade);
Console.WriteLine(stats.HighestGrade);
Console.WriteLine("{0} {1}", stats.LetterGrade, stats.Description);
}
static void Main(string[] args)
{
SpeechSynthesizer synth = new SpeechSynthesizer();
synth.Speak("Hello!, this is the grade book program");
GradeBook book = new GradeBook();
// book.NameChanged = new NameChangedDelegate(OnNameChanged);
//book.NameChanged = new NameChangedDelegate(OnNameChanged2);
book.NameChanged += new NameChangedDelegate(OnNameChanged);
// book.NameChanged += new NameChangedDelegate(OnNameChanged2);
//book.NameChanged = null;
try
{
Console.WriteLine("Enter a name");
book.Name = Console.ReadLine();
}
catch (ArgumentException ex)
{
Console.WriteLine(ex.Message);
}
//book.Name = "Kumar's Grade Book";
//book.Name = "Kumar' Grade Book";
book.AddGrade(91);
book.AddGrade(89.5f);
book.AddGrade(75);
book.WriteGrades(Console.Out);
GradeStatistics stats = book.ComputeStatistics();
////book.LowestGrade();
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest Grade", (int)stats.HighestGrade);
WriteResult("Lowest Grade", stats.LowestGrade);
WriteResult(stats.Description, stats.LetterGrade);
Console.ReadLine();
}
static void Main(string[] args)
{
GradeBook book = new GradeBook();
book.Name = null;
book.AddGrade(91);
book.AddGrade(89.5f);
book.AddGrade(75);
book.WriteGrades(Console.Out);
GradeStatistics stats = book.ComputeStatistics();
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest", stats.HighestGrade);
WriteResult("Lowest", stats.LowestGrade);
WriteResult("Grade", stats.LetterGrade);
}
static void Main(string[] args)
{
SpeechSynthesizer synth = new SpeechSynthesizer();
synth.Speak("Hello");
GradeBook book = new GradeBook();
book.AddGrade(91);
book.AddGrade(89.5f);
book.AddGrade(75);
book.WriteGrades(Console.Out);
GradeStatistics stats = book.ComputeStatistics();
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest", stats.HighestGrade);
WriteResult("Lowest", stats.LowestGrade);
WriteResult(stats.Description, stats.LetterGrade);
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
static void Main(string[] args)
{
GradeBook book = new GradeBook();
book.nameChanged += OnNameChanged;
book.Name = "Eric's Gradebook";
book.AddGrade(95);
book.AddGrade(89.5f);
book.AddGrade(77);
book.WriteGrades(Console.Out);
GradeStatistics stats = book.ComputeStatistics();
Console.WriteLine(book.Name);
WriteResult("Lowest", stats.LowestGrade);
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest", (int)stats.HighestGrade);
WriteResult(stats.Description, stats.LetterGrade);
//keeps the program open so I can see the results.
Console.ReadLine();
}
static void Main(string[] args)
{
//SpeechSynthesizer synth = new SpeechSynthesizer(); // added an assembly reference for speech synthesizing
//synth.Speak("Yo! This is a grade book program");
GradeBook book = new GradeBook(); // instantiating a new GradeBook
Console.WriteLine("Provide a GradeBook name...");
string GradeName = Console.ReadLine();
book.AddGrade(90);
book.AddGrade(89.5f); // the 'f specifies to the compiler that this is a float'
book.AddGrade(75);
book.WriteGrades(Console.Out); // console.out refers to the output screen
GradeStatistics stats = book.ComputeStatistics();
WriteResult("Average", stats.AverageGrade);
WriteResult("Highest", stats.HighestGrade); // type casting... we tell compiler to convert this value to an int
WriteResult("Lowest", stats.LowestGrade);
WriteResult(stats.Description, stats.LetterGrade);
}
static void Main(string[] args)
{
GradeBook book = new GradeBook("Daniel's book");
GradebookThatThrowsAwayLowestGrade book2 = new GradebookThatThrowsAwayLowestGrade("Toms's book");
try
{
using (FileStream stream = File.Open("Grades.txt", FileMode.Open))
using (StreamReader reader = new StreamReader(stream))
{ // when you exit "using" it calls "Dispose" method that close anything that was opened/created in "using"
string line = reader.ReadLine();
while (line != null) // if == null --> this means end of file has been achieved
{
float grade = float.Parse(line);
book.AddGrade(grade);
book2.AddGrade(grade);
line = reader.ReadLine(); // reads NEXT line of file into memory
}
}
}
catch (FileNotFoundException)
{
Console.WriteLine("Coldn't locate file Grades.txt");
return;
}
catch (UnauthorizedAccessException)
{
Console.WriteLine("No access");
return;
}
//book.AddGrade(91f);
//book.AddGrade(89.1f);
//book.AddGrade(75f);
book.WriteGrades(Console.Out);
book2.WriteGrades(Console.Out);
//do
// try
// {
// {
// Console.WriteLine("Please enter a name for the book");
// book.Name = Console.ReadLine();
// Console.WriteLine("Please enter a name for the book that throws away lowest grade");
// book2.Name = Console.ReadLine();
// }
// }
// catch (ArgumentException ex)
// {
// Console.WriteLine("Invalid name");
// Console.WriteLine(ex.Message);
// Console.WriteLine();
// }
//while (book.Name == "Daniel's book");
GradeStatistics stats = book.ComputeStatistic();
GradeStatistics stats2 = book2.ComputeStatistic();
Console.WriteLine(book.Name);
WriteStatistics(stats);
Console.WriteLine(book2.Name);
WriteStatistics(stats2);
//book.NameChanged += OnNameChanged;
//book.Name = "Scott's book";
//WriteNames(book.Name);
//int number = 20;
//WriteBytes(number);
//WriteBytes(stats.AverageGrade);
//Immutable();
//ParamsAsValueOrAsReference();
}
