/java-design-patterns

Design patterns implemented in Java

Primary LanguageJavaOtherNOASSERTION

Design patterns implemented in Java

Java CI License MIT Lines of Code Coverage Join the chat at https://gitter.im/iluwatar/java-design-patterns

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Introduction

Design patterns are the best, formalized practices a programmer can use to solve common problems when designing an application or system.

Design patterns can speed up the development process by providing tested, proven development paradigms.

Reusing design patterns help prevent subtle issues that cause major problems, and it also improves code readability for coders and architects who are familiar with the patterns.

Getting started

This site showcases Java Design Patterns. The solutions have been developed by experienced programmers and architects from the open-source community. The patterns can be browsed by their high-level descriptions or by looking at their source code. The source code examples are well commented and can be thought of as programming tutorials on how to implement a specific pattern. We use the most popular battle-proven open-source Java technologies.

Before you dive into the material, you should be familiar with various Software Design Principles.

All designs should be as simple as possible. You should start with KISS, YAGNI, and Do The Simplest Thing That Could Possibly Work principles. Complexity and patterns should only be introduced when they are needed for practical extensibility.

Once you are familiar with these concepts you can start drilling down into the available design patterns by any of the following approaches

  • Search for a specific pattern by name. Can't find one? Please report a new pattern here.
  • Using tags such as Performance, Gang of Four or Data access.
  • Using pattern categories, Creational, Behavioral, and others.

Hopefully, you find the object-oriented solutions presented on this site useful in your architectures and have as much fun learning them as we had while developing them.

How to contribute

If you are willing to contribute to the project you will find the relevant information in our developer wiki. We will help you and answer your questions in the Gitter chatroom.

License

This project is licensed under the terms of the MIT license.

Contributors

Ilkka Seppälä
Ilkka Seppälä

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Subhrodip Mohanta

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amit1307
amit1307

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Narendra Pathai

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Jeroen Meulemeester

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Joseph McCarthy

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Thomas

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Anurag Agarwal

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Markus Moser

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Sabiq Ihab

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Amit Dixit

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joshzambales

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Kirill Vlasov

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Ranjeet

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M Saif Asif

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kanwarpreet25

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Evan Sia Wai Suan

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AnaghaSasikumar

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Christoffer Hamberg

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Dominik Gruntz

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Hannes

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Leo Gutiérrez Ramírez

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Zhang WH

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Christopher O'Connell

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George Mavroeidis

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Hemant Bothra

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Kevin Peters

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George Aristy

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Mahendran Mookkiah

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Azureyjt

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gans

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Matt

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Gopinath Langote

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Hoswey

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Amit Pandey

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gwildor28

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田浩

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qza

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Rodolfo Forte

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Ankur Kaushal

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Ovidijus Okinskas

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Robert Kasperczyk

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Tapio Rautonen

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Yuri Orlov

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Varun Upadhyay

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Aditya Pal

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Sivasubramani M

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Sami Airaksinen

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Janne Sinivirta

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Boris-Chengbiao Zhou

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Jacob Hein

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Richard Jones

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Zaerald Denze Lungos

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Stefan Birkner

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samilAyoub

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Domenico Sibilio

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Omar Karazoun

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Jeff Evans

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Vivek Singh

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warp125

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KHADIR Tayeb

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Rohit Singh

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Noam Greenshtain

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Juan Manuel Abate

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Samuel Souza

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Victor He

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Victor He

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Pan Sem

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you

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Mohammed Faizan Ahmed

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Bruno Fernandes

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SammanPali

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Qixiang Chen

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Shourya Manekar

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Alan

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JanFidor

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Anton Yakutovich

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steph88ss

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Yujan Ranjitkar

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yusha-g

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Bipin Kumar Chaurasia

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u7281975

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u7275858

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Farid Zouheir

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Vinícius A. B.

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Prince bhati

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WuLang

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Aparna

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Girolamo Giordano

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Chak-C

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KarmaTashiCat

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akshatarora0013
akshatarora0013

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