diff --git a/src/main/java/org/jcnc/jnotepad/Constants.java b/src/main/java/org/jcnc/jnotepad/Constants.java
index e5adb40..dd01200 100644
--- a/src/main/java/org/jcnc/jnotepad/Constants.java
+++ b/src/main/java/org/jcnc/jnotepad/Constants.java
@@ -1,12 +1,14 @@
 package org.jcnc.jnotepad;
 
 /**
- * GameConstants持有所有共享信息的全局变量
+ * Constants持有所有共享信息的全局变量
  */
 
 public class Constants {
 
-	public static final double SCREEN_WIDTH = 800;
-	public static final double SCREEN_LENGTH = 600;
+    public static final double SCREEN_WIDTH = 800;
+    public static final double SCREEN_LENGTH = 600;
 
+    public static final String APP_NAME = "JNotepad";
+    public static final String APP_ICON = "/img/icon.png";
 }
diff --git a/src/main/java/org/jcnc/jnotepad/MainApp.java b/src/main/java/org/jcnc/jnotepad/MainApp.java
index f1e1bf0..e017359 100644
--- a/src/main/java/org/jcnc/jnotepad/MainApp.java
+++ b/src/main/java/org/jcnc/jnotepad/MainApp.java
@@ -30,19 +30,21 @@ public class MainApp extends Application {
 
         double width = Constants.SCREEN_WIDTH;
         double length = Constants.SCREEN_LENGTH;
+        String name = Constants.APP_NAME;
+        String icon =Constants.APP_ICON;
 
         Scene scene = new Scene(root, width, length);
 
-        primaryStage.setTitle("JNotepad");
+        primaryStage.setTitle(name);
         primaryStage.setWidth(width);
         primaryStage.setHeight(length);
         primaryStage.setScene(scene);
-        primaryStage.getIcons().add(new Image((Objects.requireNonNull(getClass().getResource("/img/icon.png"))).toString()));
+        primaryStage.getIcons().add(new Image((Objects.requireNonNull(getClass().getResource(icon))).toString()));
         primaryStage.show();
 
-        ViewManager poolGame = ViewManager.getInstance(scene);
+        ViewManager viewManager = ViewManager.getInstance(scene);
 
-        poolGame.initScreen(scene);
+        viewManager.initScreen(scene);
 
         initApp();