diff --git a/.obsidian/plugins/keep-the-rhythm/data.json b/.obsidian/plugins/keep-the-rhythm/data.json
index dd1a38c..1388df8 100644
--- a/.obsidian/plugins/keep-the-rhythm/data.json
+++ b/.obsidian/plugins/keep-the-rhythm/data.json
@@ -529,11 +529,11 @@
         }
       },
       "2025-08-20": {
-        "totalDelta": 796,
+        "totalDelta": 858,
         "files": {
           "A1-Work/语言/Java/基础学习.md": {
             "initial": 9708,
-            "current": 10504
+            "current": 10566
           }
         }
       }
diff --git a/.obsidian/plugins/novel-word-count/data.json b/.obsidian/plugins/novel-word-count/data.json
index b65a4ae..d96a109 100644
--- a/.obsidian/plugins/novel-word-count/data.json
+++ b/.obsidian/plugins/novel-word-count/data.json
@@ -463,20 +463,20 @@
       "isCountable": true,
       "targetNodeType": "file",
       "noteCount": 1,
-      "wordCount": 3393,
+      "wordCount": 3442,
       "wordCountTowardGoal": 0,
       "wordGoal": null,
-      "pageCount": 11.31,
-      "characterCount": 11305,
-      "nonWhitespaceCharacterCount": 8982,
-      "newlineCount": 476,
-      "readingTimeInMinutes": 7.731320754716981,
+      "pageCount": 11.473333333333333,
+      "characterCount": 11855,
+      "nonWhitespaceCharacterCount": 9336,
+      "newlineCount": 496,
+      "readingTimeInMinutes": 7.8984905660377365,
       "linkCount": 0,
       "embedCount": 1,
       "aliases": null,
       "createdDate": 1753961160249,
-      "modifiedDate": 1755696480360,
-      "sizeInBytes": 17567,
+      "modifiedDate": 1755696638536,
+      "sizeInBytes": 18139,
       "sessionStart": {
         "noteCount": 1,
         "pageCount": 2.1566666666666667,
diff --git a/A1-Work/语言/Java/基础学习.md b/A1-Work/语言/Java/基础学习.md
index acfa4cb..a08f35e 100644
--- a/A1-Work/语言/Java/基础学习.md
+++ b/A1-Work/语言/Java/基础学习.md
@@ -476,6 +476,9 @@ public class Test {
 ```
 7. 注意擦除后的冲突。
 
+### 通配符类型
+长这样：`<? extends Object>`，和 `<T extends Object>` 很像。
+
 ## JDK 特性
 
 ### JDK7