diff --git a/tutorial/alink_java/src/main/java/com/alibaba/alink/Chap11.java b/tutorial/alink_java/src/main/java/com/alibaba/alink/Chap11.java
index 20cd67849..c1d8cce57 100755
--- a/tutorial/alink_java/src/main/java/com/alibaba/alink/Chap11.java
+++ b/tutorial/alink_java/src/main/java/com/alibaba/alink/Chap11.java
@@ -44,6 +44,8 @@ public static void main(String[] args) throws Exception {
 
         c_4();
 
+        c_5();
+
         c_7();
 
         c_8();