Design Patterns Question:

Basic(
interface,
Abstract parent class,
Private methods,
accessor methods,
constant data manager,
immutable object,
monitor
)
Creation(
Factory method,
Singleton,
Abstract Factory,
Prototype,
Builder
)
Collectional(
Composite,
Iterator,
Flyweight,
Visitor
)
Structural(
decorator,
adapter,
chain of responsibility,
facade,
proxy,
bridge,
virtual proxy,
counting proxy,
aggregate Enforcer,
Explicit Object release
Object cache
)
behavioral(
Command,
Mediator,
Memento,
Observer,
Interpreter,
State,
strategy,
Null Object,
Template Method,
Object Authenticator,
Common attribute registry
)
concurrency(
critical section,
consistent lock order,
guarded suspension,
read-write lock
)