++

Program.cs

@@ -14,7 +14,7 @@ namespace TrainingCSharp
                     RethrowException.Run();
                     break;
                 case 2:
-                    //Indexer
+                    TypeCasting.Run();
 
                     break;
                 default:

type-casting.cs

+public class TypeCasting
+{
+    public static void Run()
+    {
+        var a = new List<string>() { "2", "12", "3" };
+        var b = a.OrderByDescending(s => int.Parse(s)).ToList();
+        b.ForEach(e => System.Console.WriteLine(e));
+    }
+}
\ No newline at end of file