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Title: GitHub - johnconner99/java-design-patterns: Design pattern samples implemented in Java

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Description: Design pattern samples implemented in Java. Contribute to johnconner99/java-design-patterns development by creating an account on GitHub.

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	https://github.com/johnconner99/java-design-patterns#design-pattern-samples-in-java
	https://github.com/johnconner99/java-design-patterns#build-status-coverage-and-static-analysis
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	https://github.com/johnconner99/java-design-patterns#behavioral-patterns
Chain of responsibility	https://github.com/johnconner99/java-design-patterns#chain-of-responsibility
Command	https://github.com/johnconner99/java-design-patterns#command
Interpreter	https://github.com/johnconner99/java-design-patterns#interpreter
Iterator	https://github.com/johnconner99/java-design-patterns#iterator
Mediator	https://github.com/johnconner99/java-design-patterns#mediator
Memento	https://github.com/johnconner99/java-design-patterns#memento
Observer	https://github.com/johnconner99/java-design-patterns#observer
State	https://github.com/johnconner99/java-design-patterns#state
Strategy	https://github.com/johnconner99/java-design-patterns#strategy
Template method	https://github.com/johnconner99/java-design-patterns#template-method
Visitor	https://github.com/johnconner99/java-design-patterns#visitor
Null Object	https://github.com/johnconner99/java-design-patterns#null-object
Intercepting Filter	https://github.com/johnconner99/java-design-patterns#intercepting-filter
Specification	https://github.com/johnconner99/java-design-patterns#specification
Dependency Injection	https://github.com/johnconner99/java-design-patterns#dependency-injection
	https://github.com/johnconner99/java-design-patterns#concurrency-patterns
Double Checked Locking	https://github.com/johnconner99/java-design-patterns#double-checked-locking
Thread Pool	https://github.com/johnconner99/java-design-patterns#thread-pool
Async Method Invocation	https://github.com/johnconner99/java-design-patterns#async-method-invocation
	https://github.com/johnconner99/java-design-patterns#presentation-tier-patterns
Model-View-Controller	https://github.com/johnconner99/java-design-patterns#model-view-controller
Model-View-Presenter	https://github.com/johnconner99/java-design-patterns#model-view-presenter
Flux	https://github.com/johnconner99/java-design-patterns#flux
Front Controller	https://github.com/johnconner99/java-design-patterns#front-controller
	https://github.com/johnconner99/java-design-patterns#business-tier-patterns
Business Delegate	https://github.com/johnconner99/java-design-patterns#business-delegate
	https://github.com/johnconner99/java-design-patterns#architectural-patterns
Data Access Object	https://github.com/johnconner99/java-design-patterns#dao
Service Layer	https://github.com/johnconner99/java-design-patterns#service-layer
Naked Objects	https://github.com/johnconner99/java-design-patterns#naked-objects
Repository	https://github.com/johnconner99/java-design-patterns#repository
	https://github.com/johnconner99/java-design-patterns#integration-patterns
Tolerant Reader	https://github.com/johnconner99/java-design-patterns#tolerant-reader
	https://github.com/johnconner99/java-design-patterns#idioms
Execute Around	https://github.com/johnconner99/java-design-patterns#execute-around
Poison Pill	https://github.com/johnconner99/java-design-patterns#poison-pill
Callback	https://github.com/johnconner99/java-design-patterns#callback
Lazy Loading	https://github.com/johnconner99/java-design-patterns#lazy-loading
Double Dispatch	https://github.com/johnconner99/java-design-patterns#double-dispatch
Resource Acquisition Is Initialization	https://github.com/johnconner99/java-design-patterns#resource-acquisition-is-initialization
Private Class Data	https://github.com/johnconner99/java-design-patterns#private-class-data
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#abstract-factory-
	https://github.com/iluwatar/java-design-patterns/blob/master/abstract-factory/etc/abstract-factory_1.png
javax.xml.parsers.DocumentBuilderFactory	http://docs.oracle.com/javase/8/docs/api/javax/xml/parsers/DocumentBuilderFactory.html
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#builder-
	https://github.com/iluwatar/java-design-patterns/blob/master/builder/etc/builder_1.png
java.lang.StringBuilder	http://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html
Apache Camel builders	https://github.com/apache/camel/tree/0e195428ee04531be27a0b659005e3aa8d159d23/camel-core/src/main/java/org/apache/camel/builder
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#factory-method-
	https://github.com/iluwatar/java-design-patterns/blob/master/factory-method/etc/factory-method_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#prototype-
	https://github.com/iluwatar/java-design-patterns/blob/master/prototype/etc/prototype_1.png
java.lang.Object#clone()	http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone%28%29
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#singleton-
	https://github.com/iluwatar/java-design-patterns/blob/master/singleton/etc/singleton_1.png
java.lang.Runtime#getRuntime()	http://docs.oracle.com/javase/8/docs/api/java/lang/Runtime.html#getRuntime%28%29
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#adapter-
	https://github.com/iluwatar/java-design-patterns/blob/master/adapter/etc/adapter_1.png
java.util.Arrays#asList()	http://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html#asList%28T...%29
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#bridge-
	https://github.com/iluwatar/java-design-patterns/blob/master/bridge/etc/bridge_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#composite-
	https://github.com/iluwatar/java-design-patterns/blob/master/composite/etc/composite_1.png
java.awt.Container	http://docs.oracle.com/javase/8/docs/api/java/awt/Container.html
java.awt.Component	http://docs.oracle.com/javase/8/docs/api/java/awt/Component.html
Apache Wicket	https://github.com/apache/wicket
Component	https://github.com/apache/wicket/blob/91e154702ab1ff3481ef6cbb04c6044814b7e130/wicket-core/src/main/java/org/apache/wicket/Component.java
MarkupContainer	https://github.com/apache/wicket/blob/b60ec64d0b50a611a9549809c9ab216f0ffa3ae3/wicket-core/src/main/java/org/apache/wicket/MarkupContainer.java
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#decorator-
	https://github.com/iluwatar/java-design-patterns/blob/master/decorator/etc/decorator_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#facade-
	https://github.com/iluwatar/java-design-patterns/blob/master/facade/etc/facade_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#flyweight-
	https://github.com/iluwatar/java-design-patterns/blob/master/flyweight/etc/flyweight_1.png
java.lang.Integer#valueOf(int)	http://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html#valueOf%28int%29
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#proxy-
	https://github.com/iluwatar/java-design-patterns/blob/master/proxy/etc/proxy_1.png
java.lang.reflect.Proxy	http://docs.oracle.com/javase/8/docs/api/java/lang/reflect/Proxy.html
Apache Commons Proxy	https://commons.apache.org/proper/commons-proxy/
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#service-locator-
	https://github.com/iluwatar/java-design-patterns/blob/master/service-locator/etc/service-locator.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#chain-of-responsibility-
	https://github.com/iluwatar/java-design-patterns/blob/master/chain/etc/chain_1.png
java.util.logging.Logger#log()	http://docs.oracle.com/javase/8/docs/api/java/util/logging/Logger.html#log%28java.util.logging.Level,%20java.lang.String%29
Apache Commons Chain	https://commons.apache.org/proper/commons-chain/index.html
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#command-
	https://github.com/iluwatar/java-design-patterns/blob/master/command/etc/command.png
java.lang.Runnable	http://docs.oracle.com/javase/8/docs/api/java/lang/Runnable.html
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#interpreter-
	https://github.com/iluwatar/java-design-patterns/blob/master/interpreter/etc/interpreter_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#iterator-
	https://github.com/iluwatar/java-design-patterns/blob/master/iterator/etc/iterator_1.png
java.util.Iterator	http://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#mediator-
	https://github.com/iluwatar/java-design-patterns/blob/master/mediator/etc/mediator_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#memento-
	https://github.com/iluwatar/java-design-patterns/blob/master/memento/etc/memento.png
java.util.Date	http://docs.oracle.com/javase/8/docs/api/java/util/Date.html
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#observer-
	https://github.com/iluwatar/java-design-patterns/blob/master/observer/etc/observer_1.png
java.util.Observer	http://docs.oracle.com/javase/8/docs/api/java/util/Observer.html
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#state-
	https://github.com/iluwatar/java-design-patterns/blob/master/state/etc/state_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#strategy-
	https://github.com/iluwatar/java-design-patterns/blob/master/strategy/etc/strategy_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#template-method-
	https://github.com/iluwatar/java-design-patterns/blob/master/template-method/etc/template-method_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#visitor-
	https://github.com/iluwatar/java-design-patterns/blob/master/visitor/etc/visitor_1.png
Apache Wicket	https://github.com/apache/wicket
MarkupContainer	https://github.com/apache/wicket/blob/b60ec64d0b50a611a9549809c9ab216f0ffa3ae3/wicket-core/src/main/java/org/apache/wicket/MarkupContainer.java
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#model-view-presenter-
	https://github.com/iluwatar/java-design-patterns/blob/master/model-view-presenter/etc/model-view-presenter_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#data-access-object-
	https://github.com/iluwatar/java-design-patterns/blob/master/dao/etc/dao.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#double-checked-locking-
	https://github.com/iluwatar/java-design-patterns/blob/master/double-checked-locking/etc/double_checked_locking_1.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#servant-
	https://github.com/iluwatar/java-design-patterns/blob/master/servant/etc/servant-pattern.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#null-object-
	https://github.com/iluwatar/java-design-patterns/blob/master/null-object/etc/null-object.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#event-aggregator-
	https://github.com/iluwatar/java-design-patterns/blob/master/event-aggregator/etc/classes.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#callback-
	https://github.com/iluwatar/java-design-patterns/blob/master/callback/etc/callback.png
http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/CyclicBarrier.html#CyclicBarrier%28int,%20java.lang.Runnable%29	http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/CyclicBarrier.html#CyclicBarrier%28int,%20java.lang.Runnable%29
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#intercepting-filter-
	https://github.com/iluwatar/java-design-patterns/blob/master/intercepting-filter/etc/intercepting-filter.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#execute-around-
	https://github.com/iluwatar/java-design-patterns/blob/master/execute-around/etc/execute-around.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#property-
	https://github.com/iluwatar/java-design-patterns/blob/master/property/etc/property.png
JavaScript	https://developer.mozilla.org/en-US/docs/Web/JavaScript/Inheritance_and_the_prototype_chain
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#poison-pill-
	https://github.com/iluwatar/java-design-patterns/blob/master/poison-pill/etc/poison-pill.png
akka.actor.PoisonPill	http://doc.akka.io/docs/akka/2.1.4/java/untyped-actors.html
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#lazy-loading-
	https://github.com/iluwatar/java-design-patterns/blob/master/lazy-loading/etc/lazy-loading.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#service-layer-
	https://github.com/iluwatar/java-design-patterns/blob/master/service-layer/etc/service-layer.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#specification-
	https://github.com/iluwatar/java-design-patterns/blob/master/specification/etc/specification.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#tolerant-reader-
	https://github.com/iluwatar/java-design-patterns/blob/master/tolerant-reader/etc/tolerant-reader.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#model-view-controller-
	https://github.com/iluwatar/java-design-patterns/blob/master/model-view-controller/etc/model-view-controller.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#flux-
	https://github.com/iluwatar/java-design-patterns/blob/master/flux/etc/flux.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#double-dispatch-
	https://github.com/iluwatar/java-design-patterns/blob/master/double-dispatch/etc/double-dispatch.png
ObjectOutputStream	https://docs.oracle.com/javase/8/docs/api/java/io/ObjectOutputStream.html
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#multiton-
	https://github.com/iluwatar/java-design-patterns/blob/master/multiton/etc/multiton.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#resource-acquisition-is-initialization-
	https://github.com/iluwatar/java-design-patterns/blob/master/resource-acquisition-is-initialization/etc/resource-acquisition-is-initialization.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#thread-pool-
	https://github.com/iluwatar/java-design-patterns/blob/master/thread-pool/etc/thread-pool.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#async-method-invocation-
	https://github.com/iluwatar/java-design-patterns/blob/master/async-method-invocation/etc/async-method-invocation.png
FutureTask	http://docs.oracle.com/javase/8/docs/api/java/util/concurrent/FutureTask.html
CompletableFuture	https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CompletableFuture.html
ExecutorService	http://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ExecutorService.html
Task-based Asynchronous Pattern	https://msdn.microsoft.com/en-us/library/hh873175.aspx
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#private-class-data-
	https://github.com/iluwatar/java-design-patterns/blob/master/private-class-data/etc/private-class-data.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#object-pool-
	https://github.com/iluwatar/java-design-patterns/blob/master/object-pool/etc/object-pool.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#dependency-injection-
	https://github.com/iluwatar/java-design-patterns/blob/master/dependency-injection/etc/dependency-injection.png
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#naked-objects-
	https://github.com/iluwatar/java-design-patterns/blob/master/naked-objects/etc/naked-objects.png
Apache Isis	https://isis.apache.org/
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#front-controller-
	https://github.com/iluwatar/java-design-patterns/blob/master/front-controller/etc/front-controller.png
Apache Struts	https://struts.apache.org/
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#repository-
	https://github.com/iluwatar/java-design-patterns/blob/master/repository/etc/repository.png
Spring Data	http://projects.spring.io/spring-data/
↑	https://github.com/johnconner99/java-design-patterns#list-of-design-patterns
	https://github.com/johnconner99/java-design-patterns#business-delegate-
	https://github.com/iluwatar/java-design-patterns/blob/master/business-delegate/etc/business-delegate.png
	https://github.com/johnconner99/java-design-patterns#frequently-asked-questions
	https://github.com/johnconner99/java-design-patterns#how-to-contribute
ObjectAid UML Explorer for Eclipse	http://www.objectaid.com/home
Wikipedia	http://en.wikipedia.org/wiki/Software_design_pattern
Catalog of Patterns of Enterprise Application Architecture	http://martinfowler.com/eaaCatalog/
pattern language for microservices	http://microservices.io/patterns/index.html
Cloud Design Patterns	http://download.microsoft.com/download/B/B/6/BB69622C-AB5D-4D5F-9A12-B81B952C1169/CloudDesignPatternsBook-PDF.pdf
	https://github.com/johnconner99/java-design-patterns#versioning
semantic versioning	http://semver.org/
	https://github.com/johnconner99/java-design-patterns#credits
Design Patterns: Elements of Reusable Object-Oriented Software	http://www.amazon.com/Design-Patterns-Elements-Reusable-Object-Oriented/dp/0201633612
Effective Java (2nd Edition)	http://www.amazon.com/Effective-Java-Edition-Joshua-Bloch/dp/0321356683
Java Generics and Collections	http://www.amazon.com/Java-Generics-Collections-Maurice-Naftalin/dp/0596527756/
Let’s Modify the Objects-First Approach into Design-Patterns-First	http://edu.pecinovsky.cz/papers/2006_ITiCSE_Design_Patterns_First.pdf
Pattern Languages of Program Design	http://www.amazon.com/Pattern-Languages-Program-Design-Coplien/dp/0201607344/ref=sr_1_1
Martin Fowler - Event Aggregator	http://martinfowler.com/eaaDev/EventAggregator.html
TutorialsPoint - Intercepting Filter	http://www.tutorialspoint.com/design_pattern/intercepting_filter_pattern.htm
Presentation Tier Patterns	http://www.javagyan.com/tutorials/corej2eepatterns/presentation-tier-patterns
Functional Programming in Java: Harnessing the Power of Java 8 Lambda Expressions	http://www.amazon.com/Functional-Programming-Java-Harnessing-Expressions/dp/1937785467/ref=sr_1_1
Martin Fowler - Service Layer	http://martinfowler.com/eaaCatalog/serviceLayer.html
Martin Fowler - Specifications	http://martinfowler.com/apsupp/spec.pdf
Martin Fowler - Tolerant Reader	http://martinfowler.com/bliki/TolerantReader.html
Trygve Reenskaug - Model-view-controller	http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller
Flux - Application architecture for building user interfaces	http://facebook.github.io/flux/
Richard Pawson - Naked Objects	http://downloads.nakedobjects.net/resources/Pawson%20thesis.pdf
Patterns of Enterprise Application Architecture	http://www.amazon.com/Patterns-Enterprise-Application-Architecture-Martin/dp/0321127420
Spring Data	http://www.amazon.com/Spring-Data-Mark-Pollack/dp/1449323952/ref=sr_1_1
J2EE Design Patterns	http://www.amazon.com/J2EE-Design-Patterns-William-Crawford/dp/0596004273/ref=sr_1_2
	https://github.com/johnconner99/java-design-patterns#license
Readme	https://github.com/johnconner99/java-design-patterns#readme-ov-file
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