diff --git a/01_Acey_Ducey/java/README.md b/01_Acey_Ducey/java/README.md
index 51edd8d4..4153020a 100644
--- a/01_Acey_Ducey/java/README.md
+++ b/01_Acey_Ducey/java/README.md
@@ -1,3 +1,9 @@
 Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
 
 Conversion to [Oracle Java](https://openjdk.java.net/)
+
+Two versions of Acey Ducey have been contributed.
+
+The original upload supported JDK 8/JDK 11 and uses multiple files and the second uses features in JDK 17 and is implemented in a single file AceyDucey17.java.
+
+Both are in the src folder.