private static void AddGrades(IGradeTracker book) { book.AddGrade(91); book.AddGrade(89.5f); book.AddGrade(75); book.AddGrade(20); }
private static void SaveGrades(IGradeTracker book) { using (StreamWriter outputFile = File.CreateText("grades.txt")) { book.WriteGrades(outputFile); } }
private static void SaveGrades(IGradeTracker book) { using (StreamWriter outputFile = File.CreateText("grades.txt")) { // since WriteGrades expects a TextWriter, you can pass in Console.Out (TextWriter) // or a StreamWriter instance like outputFile, since its compatible with TextWriter book.WriteGrades(outputFile); } }
private static void WriteResults(IGradeTracker book) { var stats = book.ComputeStatistics(); WriteResult("Average", stats.AverageGrade); WriteResult("Highest", stats.HighestGrade); WriteResult("Lowest", stats.LowestGrade); WriteResult(stats.Description, stats.LetterGrade); }
private static void AddEventListeners(IGradeTracker book) { book.NameChanged += new NameChangedDelegate(OnNameChangedReportChange); book.NameChanged += new NameChangedDelegate(OnNameChangedDrawStars); // equivalent to the above (shorthand) book.NameChanged += OnNameChangedReportChange; book.NameChanged += OnNameChangedDrawStars; // can also remove book.NameChanged -= OnNameChangedReportChange; // Below is valid for Delegates but invalid for Events //book.NameChanged = OnNameChanged2; }
private static void GetBookName(IGradeTracker book) { try { Console.WriteLine("Enter a name"); book.Name = Console.ReadLine(); } catch (ArgumentException ex) { Console.WriteLine(ex.Message); } }
private static void WriteResults(IGradeTracker book) { GradeStatistics stats = book.ComputeStatistics(); foreach (float grade in book) { Console.WriteLine(grade); } WriteResult("Average", stats.AverageGrade); WriteResult("Highest", stats.HighestGrade); WriteResult("Lowest", stats.LowestGrade); WriteResult(stats.Description, stats.LetterGrade); }
private static void GetBookName(IGradeTracker book) { try { Console.WriteLine("Please enter a name: "); book.Name = Console.ReadLine(); } catch (ArgumentException ex) { Console.WriteLine(ex.Message); } catch (NullReferenceException) { Console.WriteLine("Something went wrong!"); } }
private static void GetBookName(IGradeTracker book) { try { Console.WriteLine("Enter a name:"); book.Name = Console.ReadLine(); } catch (InvalidDataException ex) { Console.WriteLine(ex.Message); Console.WriteLine(ex.StackTrace); } catch (Exception ex) { Console.WriteLine("Something went wrong..."); } finally { // .... } }
private static void WriteResults(IGradeTracker book) { GradeStatistics stats = book.ComputeStatistics(); foreach (float grade in book) { Console.WriteLine(grade); } //synth.Speak(nameof(stats.AverageGrade ) + " " + stats.AverageGrade); //synth.Speak(nameof(stats.HighestGrade) + " " + stats.HighestGrade); //synth.Speak(nameof(stats.LowestGrade) + " " + stats.LowestGrade); //Console.WriteLine(nameof(stats.AverageGrade) + " " + stats.AverageGrade); //Console.WriteLine(nameof(stats.HighestGrade) + " " + stats.HighestGrade); //Console.WriteLine(nameof(stats.LowestGrade) + " " + stats.LowestGrade); Console.WriteLine(book.Name); WriteResult("Average", stats.AverageGrade); WriteResult("HighestGrade", (int)stats.HighestGrade); WriteResult("LowestGrade", stats.LowestGrade); WriteResult(stats.Description, stats.LetterGrade); }
static void Main(string[] args) { //SpeechSynthesizer synth = new SpeechSynthesizer(); //synth.Speak("Hello, this is the grade book program"); // delegates can reference multiple methods. "multi-cast delegates" //book.NameChanged += new NameChangedDelegate(OnNamedChanged); //book.NameChanged += new NameChangedDelegate(OnNamedChanged2); // equivalent. easier on eyes // book.NameChanged += OnNamedChanged; //book.Name = "Ben's grade book"; //book.Name = null; will cause ArgumentException to be thrown //book.Name = "Ben's grade book"; IGradeTracker book = CreateGradeBook(); GetBookName(book); AddGrades(book); SaveGrades(book); WriteResults(book); }
private static void GetBookName(IGradeTracker book) { //event subscribers // book.NameChanged += OnNameChanged; try { // Console.WriteLine("Enter a name"); // book.Name = Console.ReadLine(); } catch (ArgumentException ex) { Console.WriteLine(ex.Message); } catch (NullReferenceException) { Console.WriteLine("Somthing went wrong lol"); } catch (Exception ex) { Console.WriteLine(ex.Message); } }
private static void GetBookName(IGradeTracker book) { //do //{ // Console.WriteLine("Please enter a name:"); // book.Name = Console.ReadLine(); //} //while (String.IsNullOrEmpty(book.Name)); try { Console.WriteLine("Please enter a name:"); book.Name = Console.ReadLine(); } catch (ArgumentException ex) { Console.WriteLine(ex.Message); } catch (NullReferenceException) { Console.WriteLine("Something went wrong"); } }
static void Main() { // i am profi guys //from Visual Studio to Github //GradeBook book = CreateGradeBook(); // GradesTracker book = CreateGradeBook(); IGradeTracker book = CreateGradeBook(); //foreach (int values in ages) { // Console.WriteLine(values); //} // GradeBook book = new GradeBook(); //GetNameOfBook(book); AddGrades(book); SaveGrades(book); OutputGrades(book); //book.NameChanged += OnNameChanged; //book.Name = "Scott's Grade Book"; //Console.WriteLine(book.Name); }
private static void Main(string[] args) { IGradeTracker book = CreateGradeBook(); //book.NameChanged += OnNameChanged; Console.WriteLine("Enter a name:"); try { //book.Name = Console.ReadLine(); } catch (ArgumentException ex) { Console.WriteLine(ex.Message); //book.Name = "Empty"; } finally { } AddGrades(book); GradeStatistics stats = book.ComputeStatistics(); Console.WriteLine(book.Name); WriteResult("Average", stats.AverageGrade); WriteResult("Highest", (int)stats.AverageGrade); WriteResult("Lowest", stats.LowestGrade); WriteResult(stats.Description, stats.LetterGrade); }
private static void SaveGrades(IGradeTracker book) { //File.CreateText() returns something //of type StreamWriter. Note that StreamWriter //is a type of TextWriter. This action will create //a file Grades.txt in the bin folder where the //assembly lives. //Something happened here that we are writing something //to the stream. Be careful on streams, weather File or //Network stream. Streams has the tendency to buffer any //information you write into them. IF YOU DONT flush, close //or dispose of that stream, there is a chance the program //can exit without the information arriving in the intended destination. //that is what outputFile.Close() is for. /* * this approach works, but for streams, using keyword can be used too! * StreamWriter outputFile = null; * try * { * outputFile = File.CreateText("Grades.txt"); * book.WriteGrades(outputFile); * } * finally * { * outputFile.Close(); * } */ //this stuff does not even need the close method //it will take care on its own because using handles streams. using (StreamWriter outputFile = File.CreateText("Grades.txt")) { book.WriteGrades(outputFile); } }
static void Main(string[] args) { // SpeechSynthesizer synth = new SpeechSynthesizer(); //synth.Speak("Hello, World"); //Arrays(); //Immutable(); //PassByValueAndRef(); IGradeTracker book = CreateGradebook(); try { using (FileStream fs = File.Open("grades.txt", FileMode.Open)) using (StreamReader sr = new StreamReader(fs)) { string line = sr.ReadLine(); while (line != null) { float grade = float.Parse(line); book.AddGrade(grade); line = sr.ReadLine(); } } //string[] lines = File.ReadAllLines("grades.txt"); //foreach (string line in lines) //{ // float grade = float.Parse(line); // book.AddGrade(grade); //} } catch (FileNotFoundException ex) { Console.WriteLine("File not found"); return; } catch (UnauthorizedAccessException ex) { Console.WriteLine("No access"); return; } //finally //{ // if (sr != null) // { // sr.Close(); // } // if (fs != null) // { // fs.Close(); // } //} //book.AddGrade(91f); //book.AddGrade(89.1f); //book.AddGrade(75f); foreach (float grade in book) { Console.WriteLine(grade); } book.DoSomething(); book.WriteGrades(Console.Out); //Console.WriteLine(book.Name); // Method 1 for delegate //book.NameChanged = new NamedChangeDelegate(OnNameChanged); // Method 2 for delegate //book.NameChanged += OnNameChanged; //book.NameChanged += OnNameChanged; //book.NameChanged += OnNameChanged2; //book.Name = "Dick"; //Console.WriteLine(book.Name); //WriteNames("hello", "Jack", "bob", "Dick"); GradeStatistics stats = book.ComputeStatistics(); Console.WriteLine(stats.LetterGrade); Console.WriteLine(stats.Description); //int number = 20; //WriteBytes(number); //WriteBytes(stats.AverageGrade); Console.WriteLine(stats.AverageGrade); Console.WriteLine(stats.LowestGrade); Console.WriteLine(stats.HighestGrade); Console.ReadKey(); }
private static void AddGrades(IGradeTracker gb1) { gb1.AddGrade(91); gb1.AddGrade(85.2f); gb1.AddGrade(75); }
private static void WriteResults(IGradeTracker gb1) { Statistics s = gb1.GetStatistics(); Console.WriteLine("Highest Grade = {0}, Lowest Grade = {1}, and your average grade is {2}", s.Max, s.Min, s.Average); }
private static void AddGrades(IGradeTracker gradeBook) { gradeBook.AddGrade(90.25f); gradeBook.AddGrade(56.2F); gradeBook.AddGrade(89.50f); }
private static void AddGrades(IGradeTracker book) { book.AddGrade(88); book.AddGrade(99); book.AddGrade(93); }
//static void GiveBookAName(GradeBook book) //{ // book = new GradeBook(); // book.Name = "The New gradebook"; //} //static void IncrementNumber(int number) //{ // number += 1; //} static void Main(string[] args) { //SpeechSynthesizer speech = new SpeechSynthesizer(); //speech.Speak("Hello world"); //Arrays(); //Immutable(); //PassByValueAndRef(); IGradeTracker book = CreateGradeBook(); 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.DoSomething(); //book.WriteGrades(Console.Out); foreach (float grade in book) { Console.WriteLine(grade); } try { //Console.WriteLine("Please enter a name for the book"); //string priv = Console.ReadLine(); //while (priv=="") //{ // Console.WriteLine("Please insert correct value"); // priv = Console.ReadLine(); //} //book.Name = priv; } catch (ArgumentException) { Console.WriteLine("Invalid 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(book.Name); Console.WriteLine(stats.AverageGrade); Console.WriteLine(stats.LowestGrade); Console.WriteLine(stats.HighestGrade); Console.WriteLine("{0} {1}", stats.LetterGrade, stats.Description); }
private static void AddGrades(IGradeTracker book) { book.AddGrade(90); book.AddGrade(85); book.AddGrade(70); }
private static void AddGrades(IGradeTracker book) { book.AddGrade(92); book.AddGrade(67.3f); book.AddGrade(58); }
private static void AddGrades(IGradeTracker book) { book.AddBook(91); book.AddBook(7.2f); book.AddBook(75); }
private static void AddGrades(IGradeTracker book) { book.AddGrade(20); /* Add 20 into grades field using AddGrade Member*/ book.AddGrade(8.5f); /*8.5 is considered as precision of double so an f has to used to tell it is a float number*/ book.AddGrade(75); }
private static void AddGrades(IGradeTracker book) { book.AddGrades(85); book.AddGrades(95.4f); book.AddGrades(73); }
private static void WriteResult(IGradeTracker book) { using (StreamWriter outputFile = File.CreateText("grades.txt")) { book.WriteGrades(outputFile); //outputFile.Close(); } }
private static void AddGrades(IGradeTracker book) { book.AddGrade(91); book.AddGrade(45.5f); book.WriteGrade(Console.Out); }
private static void AddGrades(IGradeTracker book) { book.AddGrade(85); book.AddGrade(76.4f); book.AddGrade(59); }
static void AddGradesToGradebook(IGradeTracker book) { book.AddGrade(91); book.AddGrade(89.5f); book.AddGrade(75); }
static void Main(string[] args) { IGradeTracker book = CreateGradeBook(); book.AddGrade(95); book.AddGrade(93); book.AddGrade(99.9f); book.AddGrade(76.7f); book.AddGrade(76.7f); try { //string[] lines = File.ReadAllLines(@"C:\Users\aidas\OneDrive\Documents\Visual Studio 2015\Projects\C# Fundamentals with C# 5.0 3rd time\Grades\Grades\bin\Debug\grades.txt"); //foreach (string line in lines) //{ // book.AddGrade(float.Parse(line)); //} using (FileStream stream = File.Open("grades.txt", FileMode.Open)) using (StreamReader reader = new StreamReader(stream)) { string line = reader.ReadLine(); while (line != null) { book.AddGrade(float.Parse(line)); line = reader.ReadLine(); } } } catch (FileNotFoundException ex) { Console.WriteLine("Tokio failo neradome, todel programa baigiasi" + ex.Message); return; } //finally //{ // if (reader!=null) // { // reader.Close(); // } // if (stream != null) // { // stream.Close(); // } //} book.DoSomething(); book.WriteGrades(Console.Out); GradeStatistics stats = book.ComputeStatistics(); book.NameChanged += OnNameChanged; book.NameChanged += OnNameChanged2; book.NameChanged += OnNameChanged; book.NameChanged += OnNameChanged; book.NameChanged -= OnNameChanged; try { //Console.WriteLine("iveskite varda"); //book.Name = Console.ReadLine(); } catch (ArgumentException ex) { Console.WriteLine($"pagavaom exceptiona {ex.Message}"); } WriteNames(book.Name); Console.WriteLine($"Vidurkis {stats.average}"); Console.WriteLine($"Zemiausias {stats.LowestGrade}"); Console.WriteLine($"Didziausias {stats.BiggestGrade}"); Console.WriteLine($"Letter grades is {Char.ToUpper(stats.LetterGrade)} whick is {stats.Description.First().ToString().ToUpper() + stats.Description.Substring(1)}"); book.Name = "Vanagas"; //book.Name = Console.ReadLine(); }
//Can I set this main to public? public static void Main(string[] args) { SpeechSpeaker.Speaker(); IGradeTracker book = CreateGradeBook(); 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(); } } //book.AddGrade(91f); //book.AddGrade(89.1f); //book.AddGrade(75f); } catch (FileNotFoundException ex) { Console.WriteLine("Could not locate the file grades.txt"); return; } catch (UnauthorizedAccessException ex) { Console.WriteLine("No access"); return; } foreach (float grade in book) { Console.WriteLine(grade); } try { Console.WriteLine("Please enter a name for the book"); book.Name = Console.ReadLine(); //Delegate playground. //Book call deledgate Namgechanged. If namechanged is not null, then book.NameChanged += OnNameChanged; book.NameChanged += OnNameChanged; book.NameChanged += OnNameChanged2; book.NameChanged -= OnNameChanged; } catch (ArgumentException) { Console.WriteLine("Invalid name"); } book.Name = "Allen's Book"; WriteNames(book.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); Console.WriteLine("Press any key to exist"); Console.ReadLine(); }
private static void AddGrades(IGradeTracker caderno) { caderno.AddNota(91); caderno.AddNota(89.5f); caderno.AddNota(75); }
private static void AddGrades(IGradeTracker book) { book.AddGrade(91); book.AddGrade(89.5f); //Since we declared it as a float, we need to append it with an f book.AddGrade(75); }
private static void AddGrades(IGradeTracker book) // Changed from GradeBook to GradeTracker to explain abstracts { book.AddGrade(91); book.AddGrade(89.5f); book.AddGrade(75); }
static void Main(string[] args) { IGradeTracker book = CreateGradeBook(); //book.Add(78.1f); //book.Add(94.6f); //book.Add(82.3f); 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.Add(grade); line = reader.ReadLine(); } } } catch (FileNotFoundException) { Console.WriteLine("Could Not Locate Grades.txt File"); return; } catch (UnauthorizedAccessException) { Console.WriteLine("No Access"); return; } finally { } //string[] lines = File.ReadAllLines("Grades.txt"); //foreach (string line in lines) //{ // float grade = float.Parse(line); // book.Add(grade); //} //foreach (var grade in book) //{ // Console.Write(grade + " "); //} book.NameChanged += book.OnNameChanged; book.Name = "KishorKira Book"; //book.Name = "KishorKira Book"; book.Name = "Ks Book"; WriteName(book.Name); book.WriteGrades(Console.Out); GradeStatistics statistics = book.ComputeStatistics(); Console.WriteLine($"Avarage Grade : {statistics.AvarageGrade}"); Console.WriteLine($"Lowest Grade : {statistics.LowestGrade}"); Console.WriteLine($"Highest Grade : {statistics.HighestGrade}"); Console.WriteLine($"Letter Grade : {statistics.LetterGrade}"); Console.WriteLine($"Description : {statistics.Description}"); }
private static Student CreateStudent(string name, IGradeTracker gradeBook) { return(new Student(name, gradeBook)); }
private static void AddGrades(IGradeTracker book) { book.AddGrade(95); book.AddGrade(71); book.AddGrade(83.3f); }
private static void AddGrades(IGradeTracker book) { book.AddGrade(91); book.AddGrade(89.5f); book.AddGrade(75); }
static void Main(string[] args) { //GradeBook book = new GradeBook("Aido knygos"); //GradeBook book = new ThrowAwayGradeBook("Aido knyga"); //cia jau OOP IGradeTracker book = CraeteGradeBook(); //book.AddGrade(91f); //book.AddGrade(89.1f); //book.AddGrade(75f); //FileStream stream = null; //StreamReader reader = null; try { using (FileStream stream = File.Open("grades.txt", FileMode.Open)) //sitaip galima panaudoti uzsing kuris turi magic closing ir tada nereikia finally using (StreamReader reader = new StreamReader(stream)) //tokiu atveju net ir pagaunant exceptiona bus uzdaromas filas cia lower level dirbant su filu { string line = reader.ReadLine(); //string[] lines = File.ReadAllLines("grades.txt"); //read all line nevisada tinka nes gali but filas per didelis ir poan //foreach (string line in lines) while (line != null) { book.AddGrade(float.Parse(line)); line = reader.ReadLine(); } //reader.Close(); //butinai reikiauzdaryt bet cia negerai nes jei exceptionas pasitaikys tada numes koda kitur ir neuzdarys //stream.Close(); } } catch (FileNotFoundException ex) { Console.WriteLine("File not valid grade.txt"); return; } catch (UnauthorizedAccessException ex) //gali gaudyti kiek nori exceptionu { Console.WriteLine("you dont have access to grade.txt"); return; } //finally //{ // if (reader != null) // { // reader.Close(); //cia vienas is budu kad viska uzdarytufinally kodas visada suveiks nesvarbu ar exceptionas ar kitka // } // if (stream != null) // { // stream.Close(); //bet tada reader ir stream deklaruoti outside try // } // } //book.DoSomething(); //book.WriteGrades(Console.Out); foreach (float grade in book) { Console.WriteLine(grade); } int j; do { try { //Console.WriteLine("Please enter the name for the book"); //book.Name = Console.ReadLine(); j = 1; } catch (ArgumentException ex) //ex jei nenaudojamas jo nebutina rasyti { Console.WriteLine("Invalid name"); j = 2; } } while (j != 1); GradeStatistics stats = book.ComputeStatistics(); Console.WriteLine(stats.AverageGrade); Console.WriteLine(stats.HighestGrade); Console.WriteLine(stats.LowestGrade); //Console.WriteLine(stats.AvarageLetterGrade); //Console.WriteLine(stats.GradeDescription); Console.WriteLine("Your grade is {0} {1}", stats.AvarageLetterGrade, stats.GradeDescription); }