Java Code Geeks Java Developers Resource Center

A guide to building the perfect stack for enterprise DevOps teams Every team approaches software tooling differently, but overall we see similar frameworks across most enterprise DevOps teams. Tooling follows the the product from creation to delivery to success (ideally) and back to creation of new releases and products. Most tools fall solidly into one of these 3 categories: product ...

Continuously build, test and monitor your Microservices for optimal performance. Summary For companies migrating their architecture to microservices, anti-patterns can be a major obstacle to success. Here’s how to identify and avoid them. In my last article, Microservice Patterns That Help Large Enterprises Speed Development, Deployment and Extension, we went over some deployment and communication patterns that help keep microservices ...

Get Your Coding Stripes by Building Real Web Projects with 60+ Hrs of Training From the Pros Hey fellow geeks, This week, on our JCG Deals store, we have another extreme offer. We are offering a massive 92% off on The 2019 Interactive Coding Bootcamp. Get it now with only $39, instead of the original price of $499. The 2019 ...

Do you want to know what is the best investment you can make with your time and money? Knowledge As a software developer you should be constantly acquiring new skills. This is the best way to advance your career and enjoy the rewards (monetary, emotional etc.). Towards that direction you should be reading books, devouring technical articles and staying informed ...

We hear a lot these days about project-based organizations vs. product-based organizations. Much of what we do in software is in service of products. Products tend to evolve over time. When we work on projects, we learn from the experience. However, once we finish this release, the “product” (the output of the project) doesn’t change and incorporate our learning for ...

Software testing has gradually evolved in the past few decades. In the past, teams were accustomed to the waterfall methodology: Everything was sequential, from requirements to product deployment. Only after the development phase was completed did the testers got their hands on the product. Historically, testers would find a number of bugs in this phase, and it would take a ...

Favor Composition over Inheritance The mantra “Favor Composition over Inheritance” has, with good reasons, been repeated many times in the literature. However, there is little or no language support in Java to simplify the composition of objects. However, with a new JEP draft named “Concise Method Bodies”, the situation might improve slightly. Brian Goetz is responsible for the JEP draft which likely ...

First-Class Functions II: Filter, Reduce & more. In the previous article I introduced the concept of first-class functions and lambdas, demonstrated the technique of ‘mapping’ a function over an array and advanced it as an alternative to explicit iteration. I went on to assert that the majority of the loops we write are either for that purpose of mapping one ...

Several possibilities of the message’s possible contents crossed my mind when I saw the title of Jesper Wilhelmsson‘s message “Introducing time wasters” on the OpenJDK jdk-dev mailing list. In the second or so between reading that link and having the message appear after clicking on the link, I wondered if the message would be about one of the following topics: ...

What actually is software? It’s obviously not a physical thing you can point at. If I imagine a specific piece of software, where does the software stop and not-software begin? Back to software? What is software? Maybe it’s the compiled binary artifact? An executable or DLL or JAR file. But is that really what software is? Software is a living, growing, ...

Q1: How should we organize our teams? My team is owner of different trading platforms and the core services around it. But we depend heavily on other products (e.g. financial feeds, client identification, services to send orders to stock markets, etc.). And of course each of the team managing these services have other platforms that are their clients. The picture ...

There is a new microservices framework in town called Micronaut.  In this post, I’ll discuss how I’ve ventured into working with the Micronaut framework from a Java EE/Jakarta EE perspective.  I am a Java EE developer, so developing microservices using solutions such as Eclipse MicroProfile are closer to my line of expertise, but Micronaut caught my attention since it offers ...

1. Introduction Amazon Rekognition is an Amazon Web Service (AWS) that provides image and video analysis services. You can provide an image or video and the service will detect objects, people and scenes. Detected faces can also be matched against a set of known faces. This allows to implement use cases like user verification, people counting or public safety. The ...