diff --git a/app/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java b/app/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java
index 15504be..b43a1ee 100644
--- a/app/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java
+++ b/app/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java
@@ -16,18 +16,35 @@
 
 package net.micode.notes.gtask.exception;
 
+/**
+ * Google Tasks同步操作失败异常
+ * 继承自RuntimeException，用于表示在与Google Tasks服务交互过程中发生的错误
+ * 通常在JSON操作失败、网络请求异常或数据解析错误时抛出
+ */
 public class ActionFailureException extends RuntimeException {
     private static final long serialVersionUID = 4425249765923293627L;
 
+    /**
+     * 默认构造函数
+     */
     public ActionFailureException() {
         super();
     }
 
-    public ActionFailureException(String paramString) {
-        super(paramString);
+    /**
+     * 使用错误消息创建异常实例
+     * @param message 异常描述信息
+     */
+    public ActionFailureException(String message) {
+        super(message);
     }
 
-    public ActionFailureException(String paramString, Throwable paramThrowable) {
-        super(paramString, paramThrowable);
+    /**
+     * 使用错误消息和原始异常创建异常实例
+     * @param message 异常描述信息
+     * @param cause 原始异常
+     */
+    public ActionFailureException(String message, Throwable cause) {
+        super(message, cause);
     }
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java b/app/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java
index b08cfb1..0998699 100644
--- a/app/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java
+++ b/app/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java
@@ -16,18 +16,35 @@
 
 package net.micode.notes.gtask.exception;
 
+/**
+ * 网络连接失败异常
+ * 继承自Exception，用于表示与网络连接相关的错误
+ * 通常在网络请求失败、服务器连接超时或网络不可用时抛出
+ */
 public class NetworkFailureException extends Exception {
     private static final long serialVersionUID = 2107610287180234136L;
 
+    /**
+     * 默认构造函数
+     */
     public NetworkFailureException() {
         super();
     }
 
-    public NetworkFailureException(String paramString) {
-        super(paramString);
+    /**
+     * 使用错误消息创建异常实例
+     * @param message 异常描述信息
+     */
+    public NetworkFailureException(String message) {
+        super(message);
     }
 
-    public NetworkFailureException(String paramString, Throwable paramThrowable) {
-        super(paramString, paramThrowable);
+    /**
+     * 使用错误消息和原始异常创建异常实例
+     * @param message 异常描述信息
+     * @param cause 原始异常
+     */
+    public NetworkFailureException(String message, Throwable cause) {
+        super(message, cause);
     }
-}
+}
\ No newline at end of file