Added some java examples to behavioral

Author: pjhamilton4

src/main/java/com/philipjhamilton/patterns/behavioral/behavioral.md

@@ -10,19 +10,84 @@ Design patters that identify common communication patterns between objects and r
         objects and pass the request along the chain until an object handles it.
     2. Launch-and-leave requests with a single processing pipeline that contains many possible handlers.
     3. An OO linked list with recursive traversal.
+    
+    #### Examples in the JDK
+    1. java.util.logging.Logger#log()
+    2. javax.servlet.Filter#doFilter()
 
 - ### Command
+    #### Intent
+    1. Encapsulate a request as an object, thereby letting you parameterize clients with different requests, queue or log requests, and support undoable operations.
+    
+    #### Examples in the JDK
+    1. java.lang.Runnable
+    2. javax.swing.Action
 - ### Interpreter
+    #### Intent
+    1.   Given a language, define a represention for its grammar along with an interpreter that uses the representation to interpret sentences in the language.
+    #### Examples in the JDK
+    1. java.util.Patter
+    2. java.text.Normalizer
+    3. java.text.Format
+    4. javax.el.ELResolver
 - ### Iterator
+    #### Intent
+    1.   
+    #### Examples in the JDK
+    1. java.util.Iterator - Scanner as well
+    2. java.util.Enumeration
 - ### Mediator
+    #### Intent
+    1.
+    #### Examples in the JDK
+    1. java.util.Timer
+    2. java.util.concurrent.Executor#execute()
+    3. java.util.concurrent.ExecutorService
+    4. java.util.concurrent.ScheduledExecutorService
+    5. java.lang.reflect.Method#invoke()
 - ### Memento
+    #### Intent
+    1.
+    #### Examples in the JDK
+    1. java.util.Date
+    2. java.io.Serializable
+    3. javax.faces.component.StateHolder 
 - ### Null Object
+    #### Intent
+    1.   
 - ### Observer
+    #### Intent
+    1.
+    #### Examples in the JDK
+    1. java.util.Observer/Observable
+    2. java.util.EventListener
+    3. javax.servlet.http.HttpSession*Listener
+    4. javax.faces.event.PhaseListener
 - ### State
+    #### Intent
+    1.   
+    #### Examples in the JDK
+    1. javax.faces.lifecycle.LifeCycle#execute()
 - ### Strategy
+    #### Intent
+    1.   
+    #### Examples in the JDK
+    1. java.util.Comparator#compare()
+    2. javax.servlet.http.HttpServlet
 - ### Template method
+    #### Intent
+    1.   
+    #### Examples in the JDK
+    1. java.io.InputStream
+    2. java.io.OutputStream
+    3. java.io.Reader
+    4. java.io.Writer
 - ### Visitor
-
+    #### Intent
+    1.   
+    #### Examples in the JDK
+    1. javax.lang.model.element.AnnotationValue(Visitor)
+    2. javax.lang.model.model.element.Element(Visitor)
 ## Rules of thumb
 
 1. Behavioral patterns are concerned with the assignment of responsibilities between objects, or, encapsulating behavior in an object and delegating requests to it.