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Refcardz Spotlight

Refcard #248

Java Application Vulnerabilities

Java Applications, like any other, are susceptible to gaps in security. This Refcard focuses on the top vulnerabilities that can affect Java applications and how to...

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Refcard #233

Getting Started With Kubernetes

Containers weighing you down? Kubernetes can scale them. In order to run and maintain successful containerized applications, organization is key. Kubernetes is a...

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Refcard #202

Getting Started With Play Framework

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Refcard #247

Getting Started With Spring Boot and Microservices

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Refcard #210

NoSQL and Data Scalability

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Refcard #221

Getting Started With Docker

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Building Maintainable and Scalable Software

Learn design patterns quickly with Jason McDonald's outstanding tutorial on the original 23 Gang of Four design patterns, including class diagrams, explanations, usage info, and real world examples.

Jason McDonald

213.7k 635.4k

A Power-User's Guide to Java

Gives you an overview of key aspects of the Java language and references on the core library, commonly used tools, and new Java 8 features.

Cay Horstmann

135k 375.2k

The De Facto Standard For Version Control

This updated Refcard explains why so many developers are migrating to this exciting platform. Learn about creating a new Git repository, cloning existing projects, the remote workflow, and more to pave the way for limitless content version control.

Matthew McCullough

132.7k 303.4k

Unlocking Unobtrusive JavaScript

Introduces Ajax, a group interrelated techniques used in client-side web development for creating asynchronous web applications.

Dave Crane

102.9k 216.8k

REST Practices

The Representational State Transfer (REST) architectural style is a worldview that elevates information into a first-class element of architectures. REST allows us to achieve the architectural properties of performance, scalability, generality, simplicity, modifiability, and extensibility. This newly updated Refcard explains main HTTP verbs, describes response codes, and lists libraries and frameworks. It also gives additional resources to further explore each topic.

Brian Sletten

107k 185.4k

Dependency Injection in a Nutshell

Catalogs the XML elements available as of Spring 2.5 and highlights those most commonly used: a handy resource for Spring context configuration.

Craig Walls

105.3k 271.2k

The Most Popular Agile Methodology

Scrum is a framework that allows people to productively and creatively deliver products of the highest possible value. With over 70% of Agile teams using Scrum or Scrum hybrid, learn more about its benefits in managing complex product development. This newly updated Refcard explores the details of Scrum, including theory, values, roles, and events. It also includes a sample of a popular approach to deliver Integrated Increments in a scaled environment.

Dave West

97.6k 261.8k

First Steps in CSS

Covers Core principles of CSS that will expand and strengthen your professional ability to work with CSS. Part one of three.

Molly Holzschlag

91.9k 202.5k

The Core jQuery Reference

Introduces jQuery Selectors, which allow you to select and manipulate HTML elements as a group or as a single element in jQuery.

Bear Bibeault

94.5k 361.9k

Understanding the Core Concurrency Concepts

Helps Java developers working with multi-threaded programs understand the core concurrency concepts and how to apply them.

Alex Miller

92.6k 203.8k

Test and Debug Code With Java’s Leading IDE

Eclipse IDE is a cross-platform, multi-purpose, open-source Integrated Development Environment. It is widely used to develop projects in Java, JavaScript, PHP, C++, Scala, and many others. This newly updated Refcard breaks down installing, setting up, and getting started with Eclipse. It also covers productivity tips, creating new projects and files, accessing Source Control Managers, and debugging configurations.

Mickael Istria

82.1k 229.4k