finished module with tests

Author: Vegard Stigen

csharp-fundamentals-lists.Main/Core.cs

@@ -31,7 +31,8 @@ public List<string> Question1()
             //  TODO:  1.  Find the add method and add two more flavours of ice cream: "Phish Food", "Peanut Butter Cup"
 
             //write code here
-
+            _iceCreams.Add("Phish Food");
+            _iceCreams.Add("Peanut Butter Cup");
             return _iceCreams;        
         }
 
@@ -41,15 +42,15 @@ public int Question2()
             //TODO:  find the lists method that returns the number of ice creams in the list and return this.
 
             // remove exception and write code here
-            throw new NotImplementedException();
+            return _iceCreams.Count;
         }
         public List<string> Question3()
         {
 
             // The code below concatenates this.MoreIceCream to the _iceCreams list into a new results list.
             //TODO: you can 'chain' methods on the _iceCream list, so add another Concat to include EvenMoreIceCream  (this is defined below) to the result list . e.g.   _iceCreams.Concat(this.MoreIceCream).Concat(other list to concat).ToList()
 
-            List<string> results = _iceCreams.Concat(this.MoreIceCream).ToList();
+            List<string> results = _iceCreams.Concat(this.MoreIceCream).Concat(this.EvenMoreIceCream).ToList();
 
             return results;
 
@@ -65,7 +66,7 @@ public List<string> Question4()
             //      be sure to include the MoreIceCream and EvenMoreIceCream lists
 
 
-            List<string> results = _iceCreams;
+            List<string> results = _iceCreams.Concat(this.MoreIceCream).Concat(this.EvenMoreIceCream).Distinct().ToList();
             // remove exception and write code here
             return results;
         }