Updated the adapter example.

adapter/src/main/java/com/iluwatar/App.java

@@ -2,7 +2,7 @@ package com.iluwatar;
 
 /**
  * 
- * Adapter (GnomeEngineerAdapter) converts the interface of the
+ * Adapter (GnomeEngineer) converts the interface of the
  * target class (GoblinGlider) into suitable one.
  *
  */
@@ -10,7 +10,7 @@ public class App
 {
     public static void main( String[] args )
     {
-    	GnomeEngineerAdapter engineer = new GnomeEngineerAdapter();
-    	engineer.flyGoblinGlider();
+    	GnomeEngineer engineer = new GnomeEngineer();
+    	engineer.operateDevice();
     }
 }