diff --git a/sdm/src/java/iterator/ITicketIterator.java b/sdm/src/java/iterator/ITicketIterator.java
index af2fafa..c8d6e1f 100644
--- a/sdm/src/java/iterator/ITicketIterator.java
+++ b/sdm/src/java/iterator/ITicketIterator.java
@@ -2,7 +2,7 @@
 
 import java.util.Iterator;
 
-public interface ITicketIterator extends Iterator<Integer>
+public interface ITicketIterator extends Iterator<Integer> // Is this class really necessary?
 {
     boolean hasNext();