Finished Deriving from a Base Class

gradebook/src/GradeBook/Book.cs

@@ -5,20 +5,28 @@ 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 class Book : NamedObject
     {
         private List<double> grades;
 
         readonly string category;
 
         private string name;
-        public string Name
-        {
-            get;
-            set;
-        }
 
-        public Book(string name)
+        public Book(string name) : base(name)
         {
             Name = name;
             grades = new List<double>();

gradebook/src/GradeBook/Program.cs

@@ -8,16 +8,8 @@ namespace GradeBook
         static void Main(string[] args)
         {
 
-            // var book = new Book("Scott's Grade Book");
-            // book.AddGrade(89.1);
-            // book.AddGrade(90.5);
-            // book.AddGrade(87.2);
-
             var book = new Book("Jason's Grade Book");
             book.GradeAdded += OnGradeAdded;
-            book.GradeAdded += OnGradeAdded;
-            book.GradeAdded -= OnGradeAdded;
-            book.GradeAdded -= OnGradeAdded;
 
             string input;