Execution tag fix

BruceEckel · BruceEckel · commit d360aa59e7c7 · 2017-01-13T07:08:54.000-08:00
diff --git a/patterns/visualobserver/BoxObserver.java b/patterns/visualobserver/BoxObserver.java
@@ -4,6 +4,7 @@
 // Visit http://OnJava8.com for more book information.
 // Demonstration of Observer pattern using
 // Java's built-in observer classes
+// {java patterns.visualobserver.BoxObserver}
 package patterns.visualobserver;
 import javax.swing.*;
 import java.awt.*;
