Add shangy24Product

Products.java

@@ -806,4 +806,14 @@ public class Products { /* a good class, but not as good as cse391 */
 		1000.0
 	);
     }
-}
\ No newline at end of file
+
+    public Product shangy24Product() {
+        return new Product(
+            "Windows 10 Pro",
+            "An operating system made by Microsoft",
+            "win10.jpg",
+            "Windows 10 Default Wallpaper",
+            199.99
+        );
+    }
+}