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  • Eclipse Memory Analyzer (MAT) is a powerful tool for heap dump analysis. It has several great features to debug memory problems effectively. ‘Incoming references’... More

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  • As a resident Java Subject Matter Expert within my organization, I've been paying close attention to the happenings surrounding Java over the past two years: the... More

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It’s been a really long time – apologies for the massive gap since the last post. I promise to get back to more regular postings again. So without further ado, here are the links for...


Hello, folks! We are already in the second month of 2019, and I am sure all of you have already made your goals about what to learn in 2019 and how to achieve them. I have been writing...



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Design Patterns
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.
235.8k 759.9k
Core Java
Gives you an overview of key aspects of the Java language and references on the core library, commonly used tools, and Java 8 features.
148k 425.2k
Getting Started With Git
Git is an expected tool in every developer’s toolbox. This Refcard will teach you the essentials of getting started with Git through examples of both local and remote workflows, numerous code samples, and a brief overview of distributed version control. You’ll also learn about branching, merging, cloning, committing, and more.
148.6k 339.7k
Foundations of RESTful Architecture
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.
131.5k 252.2k
Getting Started with Ajax
Introduces Ajax, a group interrelated techniques used in client-side web development for creating asynchronous web applications.
104.9k 229.1k
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.
104.8k 285.2k
Core Java Concurrency
This Refcard will help Java developers working with multi-threaded programs to understand core concurrency concepts and how to apply them. Overview the key aspects of the Java language and get references on the core library.
113k 270.4k
Spring Configuration
Catalogs the XML elements available as of Spring 2.5 and highlights those most commonly used: a handy resource for Spring context configuration.
108.9k 298.3k
Core CSS: Part I
Covers Core principles of CSS that will expand and strengthen your professional ability to work with CSS. Part one of three.
94.5k 215.5k
jQuery Selectors
Introduces jQuery Selectors, which allow you to select and manipulate HTML elements as a group or as a single element in jQuery.
96.5k 377.2k
Getting Started with Eclipse
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.
86.2k 242.7k
Core CSS: Part II
Covers Core principles of CSS that will expand and strengthen your professional ability to work with CSS. Part two of three.
76.9k 152.2k
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