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https://github.com/iandarwin/patterns-demos

Examples of Design Patterns in Java
https://github.com/iandarwin/patterns-demos

design-patterns java patterns

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Examples of Design Patterns in Java

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= patterns-demos

This repo contains some examples of Design Patterns in Java; it was split off from my main
https://github.com/IanDarwin/javasrc[javasrc repo] to keep the latter from becoming bottom-heavy.

== Readings

The original book that popularized Design Patterns - after they were in use for a decade
in the CS community - is
https://www.amazon.com/dp/0201633612[Design Patterns: Elements of Reusable Software],
by Gamma, Helm, Johnson and Vlissides, known more concisely as the Gang of Four or even the GoF.

A less academic, more memorable, more _fun_ read is O'Reilly's
https://www.amazon.ca/dp/0596007124[Head-First Design Patterns].

== My Writings

The OO chapter of my https://www.amazon.ca/dp/144933704X[Java Cookbook], 3rd edition.

Command Pattern, in Oracle's Java Magazine May/June 2018.
https://blogs.oracle.com/javamagazine/the-command-pattern-in-depth

State Pattern, in Oracle's Java Magazine, July/August 2018.
https://blogs.oracle.com/javamagazine/the-state-pattern

Visitor Pattern, in Oracle's Java Magazine, September/October 2018.
https://blogs.oracle.com/javamagazine/the-visitor-design-pattern-in-depth

Decorator Pattern, in Oracle's Java Magazine, November/December 2018.
https://blogs.oracle.com/javamagazine/the-decorator-pattern-in-depth

Proxy Pattern, in Oracle's Java Magazine, March/April 2019
https://blogs.oracle.com/javamagazine/the-proxy-pattern