diff --git a/CustomTitleBarWindowDrag/entry/src/main/ets/pages/Index.ets b/CustomTitleBarWindowDrag/entry/src/main/ets/pages/Index.ets
index ce22d3f867dcc473cc8a61c15166782be3d13c1d..62509d8daeb1dca35f235ce62a810dc948c4e81b 100644
--- a/CustomTitleBarWindowDrag/entry/src/main/ets/pages/Index.ets
+++ b/CustomTitleBarWindowDrag/entry/src/main/ets/pages/Index.ets
@@ -17,9 +17,9 @@
 import { BusinessError } from '@kit.BasicServicesKit';
 import { window } from '@kit.ArkUI';
 
-const COLUMN_WIDTH = 108;
-const COLUMN_TOP = 50;
-const COLUMN_LEFT = 100;
+const COLUMN_WIDTH: number = 108;
+const COLUMN_TOP: number = 50;
+const COLUMN_LEFT: number = 100;
 
 @Entry
 @Component
diff --git a/SubwindowAdaptWhenRotate/entry/src/main/ets/entryability/EntryAbility.ets b/SubwindowAdaptWhenRotate/entry/src/main/ets/entryability/EntryAbility.ets
index adbf32e7ecd11af11cda34b43d2284b690c72aa4..6a20ed4a4f388b68b937f5f96b9e1fbee3d83dff 100644
--- a/SubwindowAdaptWhenRotate/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/SubwindowAdaptWhenRotate/entry/src/main/ets/entryability/EntryAbility.ets
@@ -18,9 +18,9 @@ import { hilog } from '@kit.PerformanceAnalysisKit';
 import { window } from '@kit.ArkUI';
 import { BusinessError } from '@kit.BasicServicesKit';
 
-const DOMAIN = 0x0000;
-const TAG = 'EntryAbility';
-const FORMAT = '%{public}s';
+const DOMAIN: number = 0x0000;
+const TAG: string = 'EntryAbility';
+const FORMAT: string = '%{public}s';
 
 export default class EntryAbility extends UIAbility {
   onCreate(): void {
diff --git a/SubwindowAdaptWhenRotate/entry/src/main/ets/entrybackupability/EntryBackupAbility.ets b/SubwindowAdaptWhenRotate/entry/src/main/ets/entrybackupability/EntryBackupAbility.ets
index 544f8c9bd85ea92056aeab3745327ab78c41b388..7e40415a58422f7caea3c9adf1be2a41c2fcbacf 100644
--- a/SubwindowAdaptWhenRotate/entry/src/main/ets/entrybackupability/EntryBackupAbility.ets
+++ b/SubwindowAdaptWhenRotate/entry/src/main/ets/entrybackupability/EntryBackupAbility.ets
@@ -16,9 +16,9 @@
 import { BackupExtensionAbility, BundleVersion } from '@kit.CoreFileKit';
 import { hilog } from '@kit.PerformanceAnalysisKit';
 
-const DOMAIN = 0x0000;
-const TAG = 'EntryBackupAbility';
-const FORMAT = '%{public}s';
+const DOMAIN: number = 0x0000;
+const TAG: string = 'EntryBackupAbility';
+const FORMAT: string = '%{public}s';
 
 export default class EntryBackupAbility extends BackupExtensionAbility {
   async onBackup() {
diff --git a/SubwindowAdaptWhenRotate/entry/src/main/ets/pages/Index.ets b/SubwindowAdaptWhenRotate/entry/src/main/ets/pages/Index.ets
index dd4c638a0689652584a9e0e435e72ac182e1ca3b..30d3a02f85a7f6ca3d758e6d28ce3fb103fb9b25 100644
--- a/SubwindowAdaptWhenRotate/entry/src/main/ets/pages/Index.ets
+++ b/SubwindowAdaptWhenRotate/entry/src/main/ets/pages/Index.ets
@@ -18,16 +18,16 @@ import { window } from '@kit.ArkUI';
 import { BusinessError } from '@kit.BasicServicesKit';
 import { hilog } from '@kit.PerformanceAnalysisKit';
 
-const SUB_WINDOW_LEFT_OFFSET = 50;
-const SUB_WINDOW_TOP_OFFSET = 500;
-const TAG = 'subWindowAdaptWhenRotate';
-const DOMAIN = 0x0000;
+const SUB_WINDOW_LEFT_OFFSET: number = 50;
+const SUB_WINDOW_TOP_OFFSET: number = 500;
+const TAG: string = 'subWindowAdaptWhenRotate';
+const DOMAIN: number = 0x0000;
 
 @Entry
 @Component
 struct Index {
-  private mainWindow: window.Window | undefined = undefined;
-  private subWindow: window.Window | undefined = undefined;
+  public mainWindow: window.Window | undefined = undefined;
+  public subWindow: window.Window | undefined = undefined;
 
   aboutToAppear(): void {
     // create subWindow
@@ -42,7 +42,7 @@ struct Index {
     })
   }
 
-  private adjustSubwindowSizeAndPosition() {
+  private adjustSubwindowSizeAndPosition(): void {
     if (!this.subWindow) {
       hilog.error(DOMAIN, TAG, 'subWindow is null');
       return;
@@ -51,8 +51,7 @@ struct Index {
     try {
       subwindowRect = this.subWindow.getWindowProperties().windowRect;
     } catch (error) {
-      let err = error as BusinessError;
-      hilog.warn(0x000, 'testTag', `getWindowProperties failed, code=${err.code}, message=${err.message}`);
+      hilog.warn(0x000, 'testTag', `getWindowProperties failed, code: ${error.code}, message: ${error.message}`);
     }
     let newWidth: number = subwindowRect!.height;
     let newHeight: number = subwindowRect!.width;
@@ -75,12 +74,12 @@ struct Index {
   }
 
   // [StartExclude rotate_sample]
-  private createSubWindow() {
+  private createSubWindow(): void {
     window.createWindow({
       name: 'subWindow',
       windowType: window.WindowType.TYPE_DIALOG,
       ctx: this.getUIContext().getHostContext(),
-    }).then((subWindow) => {
+    }).then((subWindow: window.Window) => {
       this.subWindow = subWindow;
 
       if (!this.mainWindow) {
@@ -90,8 +89,7 @@ struct Index {
       try {
         mainWindowRect = this.mainWindow.getWindowProperties().windowRect;
       } catch (error) {
-        let err = error as BusinessError;
-        hilog.warn(0x000, 'testTag', `getWindowProperties failed, code=${err.code}, message=${err.message}`);
+        hilog.warn(0x000, 'testTag', `getWindowProperties failed, code: ${error.code}, message: ${error.message}`);
       }
 
       let mainWindowWidth: number = mainWindowRect!.width;
@@ -108,8 +106,8 @@ struct Index {
         try {
           this.subWindow?.setWindowBackgroundColor('#ff0000');
         } catch (error) {
-          let err = error as BusinessError;
-          hilog.warn(0x000, 'testTag', `setWindowBackgroundColor failed, code=${err.code}, message=${err.message}`);
+          hilog.warn(0x000, 'testTag',
+            `setWindowBackgroundColor failed, code: ${error.code}, message: ${error.message}`);
         }
         this.subWindow?.showWindow().then(() => {
           hilog.info(DOMAIN, TAG, 'Show subwindow success');
diff --git a/bptaMultiWindow/entry/src/main/ets/components/WindowUtil.ets b/bptaMultiWindow/entry/src/main/ets/components/WindowUtil.ets
index 6a1ae4e0fce6d2ac55c784504b10e12c920a2b61..d368655860d0aae449831d6463189e2105a711d5 100644
--- a/bptaMultiWindow/entry/src/main/ets/components/WindowUtil.ets
+++ b/bptaMultiWindow/entry/src/main/ets/components/WindowUtil.ets
@@ -41,8 +41,7 @@ export class WindowUtil {
           });
       }
     } catch (error) {
-      let err = error as BusinessError;
-      hilog.warn(0x000, 'testTag', `getWindowStatus failed, code=${err.code}, message=${err.message}`);
+      hilog.warn(0x000, 'testTag', `getWindowStatus failed, code: ${error.code}, message: ${error.message}`);
     }
   }
 
@@ -61,13 +60,10 @@ export class WindowUtil {
           });
       }
     } catch (error) {
-      let err = error as BusinessError;
-      hilog.warn(0x000, 'testTag', `getWindowStatus failed, code=${err.code}, message=${err.message}`);
+      hilog.warn(0x000, 'testTag', `getWindowStatus failed, code: ${error.code}, message: ${error.message}`);
     }
   }
-
   // [EndExclude maximize]
 }
-
 // [End maximize]
 // [End recover]
\ No newline at end of file
diff --git a/bptaMultiWindow/entry/src/main/ets/entryability/EntryAbility.ets b/bptaMultiWindow/entry/src/main/ets/entryability/EntryAbility.ets
index 3e3f5257d941dcae8f2ae9f144661ff7a9abbee0..b3df1f9aaabad95d3a138f560413ca6212a43bfd 100644
--- a/bptaMultiWindow/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/bptaMultiWindow/entry/src/main/ets/entryability/EntryAbility.ets
@@ -42,12 +42,12 @@ export default class EntryAbility extends UIAbility {
           windowClass.setWindowLayoutFullScreen(true)
             .catch((err: BusinessError) => {
               hilog.error(0x000, 'testTag',
-                `setWindowLayoutFullScreen failed, code=${err.code}, message=${err.message}`)
+                `setWindowLayoutFullScreen failed, code: ${err.code}, message: ${err.message}`)
             })
         }
       })
       .catch((err: BusinessError) => {
-        hilog.error(0x000, 'testTag', `getMainWindow failed, code=${err.code}, message=${err.message}`)
+        hilog.error(0x000, 'testTag', `getMainWindow failed, code: ${err.code}, message: ${err.message}`)
       })
   }
 }