README.md

@@ -1,5 +1,3 @@
-# pluralsight-csharp-fundamentals
+# pluralsight-dotnet-paths
 
-This is a repository for learning course [**C# Fundamentals**](https://app.pluralsight.com/library/courses/csharp-fundamentals-dev) from pluralsight under Path [**C# Development Fundamentals**](https://app.pluralsight.com/paths/skill/csharp)
+This is a repository for learning everything about .NET from pluralsight. Including multiple learning Paths
-
-Notes are within wiki page

gradebook/.gitignore

@@ -1 +0,0 @@
-*Book.txt

gradebook/src/GradeBook/Book.cs

@@ -1,118 +1,31 @@
 using System;
-using System.IO;
 using System.Collections.Generic;
 
 namespace GradeBook
 {
-    public delegate void GradeAddedDelegate(object sender, EventArgs args);
+    public class Book
-
-    public class NamedObject
-    {
-
-        public NamedObject(string name)
-        {
-            Name = name;
-        }
-        public string Name
-        {
-            get;
-            set;
-        }
-    }
-
-    public interface IBook
-    {
-        void AddGrade(double grade);
-        Statistics GetStatistics();
-        string Name { get; }
-        event GradeAddedDelegate GradeAdded;
-    }
-
-    public abstract class Book : NamedObject, IBook
-    {
-        // Abstract class used to act as entrypoint for other class, so output 
-        // can change based on given input. At this level, we cannot provide implementation
-        // Let derived class to determine details.
-
-        public Book(string name) : base(name)
-        {
-
-        }
-        public abstract void AddGrade(double grade);
-
-        public abstract event GradeAddedDelegate GradeAdded;
-        public abstract Statistics GetStatistics();
-    }
-
-    public class DiskBook : Book
-    {
-        public DiskBook(string name) : base(name)
-        {
-        }
- 
-        public override event GradeAddedDelegate GradeAdded;
-
-        public override void AddGrade(double grade)
-        {
-            using(var writer = File.AppendText($"{Name}.txt"))
-            {
-                writer.WriteLine(grade);
-                if (GradeAdded != null)
-                {
-                    GradeAdded(this, new EventArgs());
-                }
-            }
-        }
-
-        public override Statistics GetStatistics()
-        {
-            var result = new Statistics();
-            using (var reader = File.OpenText($"{Name}.txt"))
-            {
-                var line = reader.ReadLine();
-                while(line != null)
-                {
-                    var number = double.Parse(line);
-                    result.Add(number);
-                    line = reader.ReadLine();
-                }
-            }
-
-            return result;
-        }
-    }
-    public class InMemoryBook : Book, IBook
     {
         private List<double> grades;
+        public string Name;
 
-        readonly string category;
+        public Book(string name)
-
-        private string name;
-
-        public InMemoryBook(string name) : base(name)
         {
             Name = name;
             grades = new List<double>();
         }
 
-        public override void AddGrade(double grade)
+        public void AddGrade(double grade)
         {
             if (grade <= 100 && grade >= 0)
             {
                 this.grades.Add(grade);
-
-                if (GradeAdded != null)
-                {
-                    // Somebody is listening/subscribing
-                    GradeAdded(this, new EventArgs()); // sender = this, pass; Raising event
-                }
             } else
             {
                 throw new ArgumentException($"Invalid {nameof(grade)}");
             }
         }
 
-        public void AddGrade(char letter)
+        public void AddLetterGrade(char letter)
         {
             switch (letter)
             {
@@ -131,15 +44,39 @@ namespace GradeBook
             }
         }
 
-        public override event GradeAddedDelegate GradeAdded;
+        public Statistics GetStatistics()
-
-        public override Statistics GetStatistics()
         {
             var result = new Statistics();
+            result.Average = 0.0;
+            result.highGrade = double.MinValue;
+            result.lowGrade = double.MaxValue;
 
             foreach (var grade in this.grades)
             {
-                result.Add(grade);
+                result.lowGrade = Math.Min(grade, result.lowGrade);
+                result.highGrade = Math.Max(grade, result.highGrade);
+                result.Average += grade;
+            }
+
+            result.Average /= grades.Count;
+
+            switch (result.Average)
+            {
+                case var d when d >= 90.0:
+                    result.Letter = 'A';
+                    break;
+                case var d when d >= 80.0:
+                    result.Letter = 'B';
+                    break;
+                case var d when d >= 70.0:
+                    result.Letter = 'C';
+                    break;
+                case var d when d >= 60.0:
+                    result.Letter = 'D';
+                    break;
+                default:
+                    result.Letter = 'F';
+                    break;
             }
 
             return result;

gradebook/src/GradeBook/Program.cs

@@ -8,23 +8,14 @@ namespace GradeBook
         static void Main(string[] args)
         {
 
-            var book = new DiskBook("Jason's Grade Book");
+            // var book = new Book("Scott's Grade Book");
-            book.GradeAdded += OnGradeAdded;
+            // book.AddGrade(89.1);
+            // book.AddGrade(90.5);
+            // book.AddGrade(87.2);
 
+            var book = new Book("Jason's Grade Book");
             string input;
 
-            input = EnterGrades(book);
-
-            var stats = book.GetStatistics();
-
-            Console.WriteLine($"The lowest grade is {stats.lowGrade}");
-            Console.WriteLine($"The highesst grade is {stats.highGrade}");
-            Console.WriteLine($"The average grade is {stats.Average:N1}");
-        }
-
-        private static string EnterGrades(Book book)
-        {
-            string input;
             while (true)
             {
                 Console.WriteLine("Give input: ");
@@ -33,14 +24,12 @@ namespace GradeBook
                 {
                     Console.WriteLine("Receiving termination signal; Termiate program");
                     break;
-                }
+                } else
-                else
                 {
                     try
                     {
                         Console.WriteLine($"Received: {input}");
                         book.AddGrade(Convert.ToDouble(input));   
-                        // book.AddGrade('A');
                     }
                     catch (ArgumentException ex)
                     {
@@ -58,13 +47,11 @@ namespace GradeBook
                 }
             }
 
-            return input;
+            var stats = book.GetStatistics();
-        }
 
-        static void OnGradeAdded(object sender, EventArgs e)
+            Console.WriteLine($"The lowest grade is {stats.lowGrade}");
-        {
+            Console.WriteLine($"The highesst grade is {stats.highGrade}");
-            // Main is static, so it can only call static methods, hence return type is static
+            Console.WriteLine($"The average grade is {stats.Average:N1}");
-            Console.WriteLine("A line has added");
         }
     }
 }

gradebook/src/GradeBook/Statistics.cs

@@ -1,54 +1,10 @@
-using System;
-
 namespace GradeBook
 {
     public class Statistics
     {
-        public double Average
+        public double Average;
-        {
-            get
-            {
-                return Sum / Count;
-            }
-        }
         public double highGrade;
         public double lowGrade;
-        public char Letter
+        public char Letter;
-        {
-            get{
-                switch (Average)
-                {
-                    case var d when d >= 90.0:
-                        return 'A';
-                    case var d when d >= 80.0:
-                        return 'B';
-                    case var d when d >= 70.0:
-                        return 'C';
-                    case var d when d >= 60.0:
-                        return 'D';
-                    default:
-                        return 'F';
-                }
-            }
-        }
-        public double Sum;
-        public int Count;
-        
-        public void Add(double number)
-        {
-            Sum += number;
-            Count += 1;
-            
-            lowGrade = Math.Min(number, lowGrade);
-            highGrade = Math.Max(number, highGrade);
-        }
-
-        public Statistics()
-        {
-            Count = 0;
-            Sum = 0.0;
-            highGrade = double.MinValue;
-            lowGrade = double.MaxValue;
-        }
     }
 }

gradebook/test/GradeBook.Tests/BookTests.cs

@@ -9,7 +9,7 @@ namespace GradeBook.Tests
         public void BookCalculateAnAverageGrade()
         {
             // arrange
-            var book = new InMemoryBook("");
+            var book = new Book("");
             book.AddGrade(89.1);
             book.AddGrade(90.5);
             book.AddGrade(77.3);

gradebook/test/GradeBook.Tests/TypeTests.cs

@@ -4,36 +4,8 @@ using Xunit;
 namespace GradeBook.Tests
 {
     using GradeBook;
- 
-    public delegate string WriteLogDelegate(string logMessage);
-
     public class TypeTests
     {
-        int count = 0;
-
-        [Fact]
-        public void WriteLogDelegateCanPointToMethod()
-        {
-            string msg = "test";
-
-            WriteLogDelegate log = new WriteLogDelegate(ReturnMessage); // Instantiate a delegate
-            log += ReturnMessage2; // Multi-cast delegate
-            var result = log(msg); // Invoking a delegate
-            Assert.Equal(result, msg);
-            Assert.Equal(count, 2);
-        }
-
-        string ReturnMessage(string message)
-        {
-            count += 1;
-            return message;
-        }
-        string ReturnMessage2(string message)
-        {
-            count += 1;
-            return message;
-        }
-
         [Fact]
         public void ValueTypesAlsoPassByValue()
         {
@@ -77,9 +49,9 @@ namespace GradeBook.Tests
             Assert.Equal(book1.Name, "New Name");
         }
 
-        private void GetBookSetName(ref InMemoryBook book, string name)
+        private void GetBookSetName(ref Book book, string name)
         {
-            book = new InMemoryBook(name);
+            book = new Book(name);
             book.Name = name;
         }
 
@@ -92,9 +64,9 @@ namespace GradeBook.Tests
             Assert.Equal(book1.Name, "Book1");
         }
 
-        private void GetBookSetName(InMemoryBook book, string name)
+        private void GetBookSetName(Book book, string name)
         {
-            book = new InMemoryBook(name);
+            book = new Book(name);
             book.Name = name;
         }
 
@@ -107,7 +79,7 @@ namespace GradeBook.Tests
             Assert.Equal(book1.Name, "New Name");
         }
 
-        private void SetName(InMemoryBook book, string name)
+        private void SetName(Book book, string name)
         {
             book.Name = name;
         }
@@ -133,9 +105,9 @@ namespace GradeBook.Tests
         }
 
 
-        private InMemoryBook GetBook(string name)
+        private Book GetBook(string name)
         {
-            return new InMemoryBook(name);
+            return new Book(name);
         }
     }
 }