diff --git a/.obsidian/plugins/keep-the-rhythm/data.json b/.obsidian/plugins/keep-the-rhythm/data.json
index e3e6d63..bdc8c8a 100644
--- a/.obsidian/plugins/keep-the-rhythm/data.json
+++ b/.obsidian/plugins/keep-the-rhythm/data.json
@@ -538,11 +538,11 @@
         }
       },
       "2025-08-21": {
-        "totalDelta": 544,
+        "totalDelta": 581,
         "files": {
           "A1-Work/语言/Java/基础学习.md": {
             "initial": 10752,
-            "current": 11296
+            "current": 11333
           }
         }
       }
diff --git a/.obsidian/plugins/novel-word-count/data.json b/.obsidian/plugins/novel-word-count/data.json
index 3dc563b..762edba 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": 3720,
+      "wordCount": 3771,
       "wordCountTowardGoal": 0,
       "wordGoal": null,
-      "pageCount": 12.4,
-      "characterCount": 12939,
-      "nonWhitespaceCharacterCount": 9921,
-      "newlineCount": 524,
-      "readingTimeInMinutes": 8.511245283018868,
+      "pageCount": 12.57,
+      "characterCount": 13046,
+      "nonWhitespaceCharacterCount": 10021,
+      "newlineCount": 526,
+      "readingTimeInMinutes": 8.607924528301886,
       "linkCount": 0,
       "embedCount": 1,
       "aliases": null,
       "createdDate": 1753961160249,
-      "modifiedDate": 1755779703068,
-      "sizeInBytes": 19735,
+      "modifiedDate": 1755779770801,
+      "sizeInBytes": 19950,
       "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 0b35aa1..cf3256e 100644
--- a/A1-Work/语言/Java/基础学习.md
+++ b/A1-Work/语言/Java/基础学习.md
@@ -506,6 +506,12 @@ public class Test {
 | WeakHashMap     | 一种其值毫无用武之地后可以被垃圾回收器回收的映射表   |
 | IdentityHashMap | 一种用 == 而不是用 equals 比较键值的                 | 
 
+### 集合框架
+```mermaid
+classDiagram
+    
+```
+
 ## JDK 特性
 
 ### JDK7