Add screens

Program.cs

@@ -1,11 +1,12 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 using Microsoft.Xna.Framework.Input;
 
 namespace Barbs
 {
-    class Program : Game
+    class Program : Game, IDisposable
     {
         Texture2D ballTexture;
         private GraphicsDeviceManager graphics;
@@ -51,6 +52,12 @@ namespace Barbs
             this.testLine.InitOnGraphicalDevice(GraphicsDevice);
         }
 
+        protected void Dispose()
+        {
+            //Cleanup
+            // OR Final call before shutdown
+        }
+
         protected override void Update(GameTime gameTime)
         {
             if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
@@ -82,8 +89,11 @@ namespace Barbs
 
         static void Main(string[] args)
         {
-            var pro = new Program();
-            pro.Run();
+
+            using (Program game = new Program())
+            {
+                game.Run();
+            }
         }
     }
 }