diff --git a/example/lib/run_model_by_camera_demo.dart b/example/lib/run_model_by_camera_demo.dart
index c56eb21..86f2887 100644
--- a/example/lib/run_model_by_camera_demo.dart
+++ b/example/lib/run_model_by_camera_demo.dart
@@ -9,10 +9,10 @@ class RunModelByCameraDemo extends StatefulWidget {
   const RunModelByCameraDemo({Key? key}) : super(key: key);
 
   @override
-  _RunModelByCameraDemoState createState() => _RunModelByCameraDemoState();
+  RunModelByCameraDemoState createState() => RunModelByCameraDemoState();
 }
 
-class _RunModelByCameraDemoState extends State<RunModelByCameraDemo> {
+class RunModelByCameraDemoState extends State<RunModelByCameraDemo> {
   List<ResultObjectDetection>? results;
   Duration? objectDetectionInferenceTime;
 
diff --git a/example/lib/run_model_by_image_demo.dart b/example/lib/run_model_by_image_demo.dart
index 4bc09cd..d78ae94 100644
--- a/example/lib/run_model_by_image_demo.dart
+++ b/example/lib/run_model_by_image_demo.dart
@@ -10,10 +10,10 @@ class RunModelByImageDemo extends StatefulWidget {
   const RunModelByImageDemo({Key? key}) : super(key: key);
 
   @override
-  _RunModelByImageDemoState createState() => _RunModelByImageDemoState();
+  RunModelByImageDemoState createState() => RunModelByImageDemoState();
 }
 
-class _RunModelByImageDemoState extends State<RunModelByImageDemo> {
+class RunModelByImageDemoState extends State<RunModelByImageDemo> {
   ClassificationModel? _imageModel;
   //CustomModel? _customModel;
   late ModelObjectDetection _objectModel;
diff --git a/example/lib/run_model_by_image_picker_camera_demo.dart b/example/lib/run_model_by_image_picker_camera_demo.dart
index f91366e..2921b13 100644
--- a/example/lib/run_model_by_image_picker_camera_demo.dart
+++ b/example/lib/run_model_by_image_picker_camera_demo.dart
@@ -8,11 +8,11 @@ class RunModelByImagePickerCameraDemo extends StatefulWidget {
   const RunModelByImagePickerCameraDemo({Key? key}) : super(key: key);
 
   @override
-  _RunModelByImagePickerCameraDemoState createState() =>
-      _RunModelByImagePickerCameraDemoState();
+  RunModelByImagePickerCameraDemoState createState() =>
+      RunModelByImagePickerCameraDemoState();
 }
 
-class _RunModelByImagePickerCameraDemoState
+class RunModelByImagePickerCameraDemoState
     extends State<RunModelByImagePickerCameraDemo> {
   List<ResultObjectDetection>? objectDetectionResults;
   String? classificationResult;