Commented composite example.

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

 package com.iluwatar;
 
+/**
+ * 
+ * With Composite we can treat tree hierarchies of objects
+ * with uniform interface (LetterComposite). In this example
+ * we have sentences composed of words composed of letters.
+ *
+ */
 public class App 
 {
     public static void main( String[] args )
     {
-    	
     	System.out.println("Message from the orcs: ");
     	
     	LetterComposite orcMessage = new Messenger().messageFromOrcs();
@@ -16,6 +22,5 @@ public class App
     	
     	LetterComposite elfMessage = new Messenger().messageFromElves();
     	elfMessage.print();
-    	
     }
 }

composite/src/main/java/com/iluwatar/LetterComposite.java

@@ -3,6 +3,11 @@ package com.iluwatar;
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * 
+ * Composite interface.
+ *
+ */
 public abstract class LetterComposite {
 
 	private List<LetterComposite> children = new ArrayList<LetterComposite>();