Java Code Geeks Java Developers Resource Center

Come to Grips with AWS, Linux, Docker & Other Enterprise Computing Systems in Over 69 Hours of Instruction Hey fellow geeks, This week, on our JCG Deals store, we have another extreme offer. We are offering a massive 93% off on The Ultimate DevOps Mastery Bundle. Get it now with only $43, instead of the original price of $652. Fundamentals ...

There has long been a divide between development and operations teams. But recently, there has been a movement to break down these metaphorical walls and build bridges of shared accountability between the two functions. With the emergence of roles like DevOps and Site Reliability Engineering (SRE), we are seeing the introduction of a more collaborative approach to delivering reliable software. ...

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 ...

First things first. If you’re someone looking to adopt a new programming language to learn and earn then Java is certainly a great option to begin with. For those still struggling to make it out alive from being a Java intern, keep hanging. Much better is to come for the true ones! The popularity enjoyed by Java programming language can ...

I recently rolled off a project focusing on the performance of Corda for a particular use-case. The result of this project lead to us processing 115 million requests within a single day over a network of over 170 nodes. Furthermore, Corda was able to handle 6300 requests per second confirming that the highest requirement of the network was met. This ...

Last year I wrote about the power of 1% improvement, and how powerful this can be when that improvement occurs frequently. For example, if a team improves 1% a week then over the course of 50 weeks (a year) they would improve by over 62%. A few days ago I had a revelation: the opposite is also true. If a team ...

Did you realize that consumers spend nearly $86 billion on apps each year? If you are an app developer, finding a way to make your programs stand out from the competition should be your main goal. Failing to focus on making your apps functional and engaging can make it difficult to achieve the level of success you are after. While ...

I wrote some time ago about anti-patterns in OOP. Now it’s time to write about unit testing anti-patterns—because they also exist, and there are many. I will try to include every example I know in this list. If you know any others, please add them via a pull request or post a comment below. For each anti-pattern I will try ...

Five Kinds of Strings Ever since Java 1.0, we’ve had string literals "like this". What other strings might we want? Other programming languages give us: Expression interpolation: s"I am ${age - 10} years old." Interpolation with formatting: f"Price: $price%8.2f" Strings with internal syntax that is checked at compile time: r"[0-9]+([.,][0-9]*)? or xml"<a href='http://java.sun.com'>The Java home page</a>" Raw strings in which ...

Pragmatism In this series we’ve taken a whirlwind tour through the topics related to functional programming that I think are most important to know, plus some extra that I think are good to know. We started with the basics, defining what I believe to be the essence of FP, and showed how programming without reassignment is actually feasible by using ...