Improved the adapter pattern example. Updated the class diagram.

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

@@ -0,0 +1,21 @@
+package com.iluwatar;
+
+/**
+ * 
+ * GnomeEngineering manager uses Engineer to
+ * operate devices.
+ *
+ */
+public class GnomeEngineeringManager implements Engineer {
+
+	private Engineer engineer;
+	
+	public GnomeEngineeringManager() {
+		engineer = new GnomeEngineer();
+	}
+	
+	@Override
+	public void operateDevice() {
+		engineer.operateDevice();
+	}
+}