diff --git a/.gitignore b/.gitignore
index 30257a0..69b5488 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,4 +33,5 @@ build/
 .vscode/
 
 *.log
-*.class
\ No newline at end of file
+*.class
+/demo2/java9-example/mods/
diff --git a/demo2/java10-example/src/main/java/OtherFeaturesExample.java b/demo2/java10-example/src/main/java/OtherFeaturesExample.java
index b41b8fc..19d8922 100644
--- a/demo2/java10-example/src/main/java/OtherFeaturesExample.java
+++ b/demo2/java10-example/src/main/java/OtherFeaturesExample.java
@@ -24,6 +24,7 @@ public class OtherFeaturesExample {
         // Collection.toArray() 新重载方法
         List<String> stringList = Arrays.asList("Java", "10", "新特性");
         // Java 10新增的重载方法，可以直接指定数组类型
+//        String[] stringArray = stringList.toArray(stringList.toArray(new String[0]));
         String[] stringArray = stringList.toArray(String[]::new);
         System.out.println("Collection.toArray() 新方法结果: " + Arrays.toString(stringArray));