2021-09-12 12:15
JUnit is one of the most popular unit testing frameworks in the Java ecosystem. The JUnit 5 version (also known as Jupiter) contains many exciting innovations, including support for new feat… Read More
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Java Code Geeks Blog
javacodegeeks.com
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2021-09-10 07:00
Introduction In this article, I will demonstrate how to create and deploy a service with Cloud Run for Anthos. You can go through my previous article to understand the basics of Cloud Run fo… Read More
2021-09-10 04:00
Introduction The word serverless took the world by storm. Let’s talk a bit about this concept called serverless. We all know serverless means running a piece of code on cloud without w… Read More
2021-09-09 07:00
The Technology involved in mobile devices is changing rapidly. Mobile phones have literally personalized the choices in our lives, experts forecast that the future devices will enable us to… Read More
2021-09-09 04:00
Responsive Design Testing has been a key factor in enhancing our access to information through various digital devices and responsive web design. Things that seemed like herculean tasks year… Read More
2021-09-08 07:00
So when does it make sense to customize your agile approach to gain a strategic advantage? Whenever you have a unique problem to solve that’s strategic to your business. Let’s st… Read More
2021-09-08 04:00
A number of my clients confuse their strategic ideas with tactical work. They think that the agile tools they use, such as boards, offer a strategic advantage. So they build or customize the… Read More
2021-09-07 07:00
Automation is a hot issue for businesses of all sizes, across all industries. Whether you work in IT or not, you’ve probably heard of automation as a method to save money, improve effi… Read More
2021-09-07 04:00
In a lot of my #testing content, I’ve been showing how to run projects locally, for example by using Docker containers. In this video, I’m showing how to build up a complex proje… Read More
2021-09-06 07:00
Some managers wanted to prevent Bad Things from happening in the organization, so they added policies or procedures. Now, these same managers want business agility. However, the policies and… Read More
2021-09-06 06:00
Become a Top-Notch, In-Demand Tech Professional with 22 Courses & Over 240 Hours of Content on Leading IT Skill Certifications — AWS, Cisco, and CompTIA Hey fellow geeks, This week… Read More
2021-09-06 04:00
Introduction Software Development goes through many phases like requirement gathering & analysis, communication, design, code building, testing, and release. A business has to ensure tha… Read More
2021-09-05 12:15
Logging is an inevitable part of debugging. Well, at least in modern high-level programming languages and architectures. It wasn’t thirty years ago, in Assembly, but it is now. Sometim… Read More
2021-09-04 12:15
Enabling Garbage collection logs on your application has certain advantages. In nutshell, Garbage collection logs will facilitate you to optimize Garbage Collection pause time, improve overa… Read More
2021-09-03 07:00
Introduction to CI/CD Continuous Integration and Continuous Deployment pipeline has become the primary approach in Software Development Life Cycle(SDLC). As a matter of fact, CI/CD pipeline… Read More
2021-09-03 04:00
I am slightly hesitant to write this post, as it might attract some criticism. Nevertheless, I told myself there is nothing wrong with sharing my point of view (even though it might not be w… Read More
2021-09-02 04:00
Java 16 introduces a new Stream.mapMulti method which allows you to replace elements in a stream with multiple elements. The example below shows how you can use mapMulti to replace each stri… Read More
2021-09-01 07:00
In a previous blog post I went over the basics of what it takes to create a configuration for Cloud Build. This post will expand on it by creating a functional CI/CD pipeline for a java proj… Read More
2021-09-01 04:00
Since Reactor has taken over the Java world it was inevitable the a reactive sql library would be there.In this blog we shall use r2dbc with h2 and reactor. We shall start with the dependenc… Read More
2021-08-31 04:00
Ever since the start of the digital revolution, we have witnessed the utmost requirement of storing data effectively and efficiently. Data is the lifeblood of business solutions and having a… Read More
2021-08-30 06:00
Move Into a Higher-Level IT Engineer or Entry-Level Architect Role with 74 Hours of Hands-On Content on AWS Cloud Essentials, Cloud Migration, Technologies, & Exam Prep Hey fellow geeks… Read More
2021-08-30 04:00
Grpc is a high performance, open source universal RPC framework.There are various benefits for using gRPC. It simplifies development by providing client/server codeIt supports multiple langu… Read More
2021-08-29 12:15
In our previous article from this series we shared a look at the logical common architectural elements found in a cloud factory solution. The process was laid out how we approache… Read More
2021-08-28 12:15
When you have an Android project with many modules, you may find a lot of the gradle configuration being duplicated (often by copy and paste) across the build.gradle files in the various mod… Read More
2021-08-27 04:00
I’ve been working with React Native lately, and I’ve come across a few unimplemented features I needed to add to the basic components. One of those components is the React Native… Read More
2021-08-26 04:00
Spring Integration is a very powerful and extensible framework for, well, integrations. But sometimes it’s not trivial how to get some information that yo need. In my case – a ce… Read More
2021-08-25 04:00
I have been exploring Google Cloud Build recently and this post is a simple introduction to this product. You can think of it as a tool that enables automation of deployments. This post thou… Read More
2021-08-24 04:00
The latest Python version has become increasingly common among users since its addition to Ubuntu 21.04 a couple of months ago. That gives developers plenty of reason to start using it in th… Read More
2021-08-23 06:00
Establish Your Career in the World’s Leading Tech Certification Industry with Massive 162 Hours of Instruction on CompTIA A+, PenTest+, Security+, Network+ & More Hey fellow geeks… Read More
2021-08-23 04:01
A rebuttal of points raised in this article by James O Coplien. It’s worth noting that James O Coplien is a well respected father of modern software engineering, so it’s odd to b… Read More
2021-08-22 12:15
I present now the case against CI/CD: It’s expensive to set up CI/CD pipelines, and the cost of doing so is not paid backIt’s expensive to maintain CI/CD pipelines so they keep w… Read More
2021-08-21 12:15
Testing is an important phase of the Software Development Life Cycle(SDLC) where the primary agenda is to uncover maximum bugs and dig out the missing requirements for successful product rel… Read More
2021-08-20 04:00
When we talk about automation, one of the tools that comes first to our mind is Selenium. We all know that the Selenium WebDriver is a remarkable tool for web automation. The primary reason… Read More
2021-08-19 04:00
Many of us focus on how efficient we can be. Many of our organizations want to maximize our output for every minute and hour of work. However, if we focus on effectiveness first, we create b… Read More
2021-08-18 04:01
Several of my clients have internal struggles about how to internally see the future of the product. The teams want to use an agile approach so they can incorporate learning. The managers wa… Read More
2021-08-17 04:00
Inject Quarkus list types with @ConfigProperty In a previous post, you’ve seen how to map complex configuration structures with Quarkus using @ConfigMapping. If you have a typed collec… Read More
2021-08-16 06:00
This Massive 98-Hour Multi-Instructor Course on Git Hub, Kubernetes, Git SQL & Heroku Teaches You How to Implement Continuous Deployment for Cloud Native Applications Hey fellow geeks, T… Read More
2021-08-16 04:01
Introduction I want to complain about the pattern of using Commands and Command Handlers in this article, but I don’t want to spend my time explaining what they are, so I’ll link… Read More
2021-08-15 12:14
Making constructors pre-process the arguments before encapsulating them seems to be bad practice. However, very often it’s necessary to do exactly that: perform some manipulations with… Read More
2021-08-14 12:15
Usually we use standard data exchange formats like JSON or XML with REST web services. However, many REST services have at least some operations that can be hard to fulfill with just JSON or… Read More
2021-08-13 04:03
I’m struggling to write several posts and I realized I need to define my terms. I keep seeing managers confuse the strategic and tactical. That leads to large and unchangeable roadmaps… Read More
2021-08-12 04:00
Too many nonfiction writers still listen to advice from their long-ago English teachers. That advice was, “Edit as you go.” Editing as you go slows your writing and allows you to… Read More
2021-08-11 04:00
This post uses Tensorflow with Keras API for a classification problem of predicting diabetes based on a feed-forward neural network also known as multilayer perceptron and uses Pima Indians… Read More
2021-08-10 04:00
I just realized that I am using Streamlit since almost one year now, posted about in Twitter or LinkedIn several times, but never wrote a blog post about it before. Communication in Da… Read More
2021-08-09 06:00
This Absolutely Enormous, 161-Hour Bundle is Your Ticket to a Lifetime of Success as an Ethical Hacker Hey fellow geeks, This week, on our JCG Deals store, we have another extreme offer. We… Read More
2021-08-09 04:00
I have heard a few of my developer friends say: “Garbage Collection is automatic. So, I do not have to worry about it.“ The first part is true, i.e., “Garbage Collecti… Read More
2021-08-08 12:15
Data caching is a widespread technique in the programming. It allows to quickly retrieve data without making long-running operations. But there is a problem with caching of data retrieved as… Read More
2021-08-07 12:15
In our previous article from this series we introduced a use case for a cloud factory, deploying multiple private clouds based on one code base using the principles of Infrast… Read More
2021-08-06 04:00
This article launches a new series exploring a cloud factory architecture. It’s focusing on presenting access to ways of mapping successful implementations for specific use cases. It&r&hell…Read More
2021-08-05 04:00
Sometimes we find ourselves in a situation in which we need certain data, that needs to be manually fetched from some website. As developers, of course automation is our friend, which is why… Read More
2021-08-04 04:00
Every organization wants to win the competition, and one way to achieve this is by delivering the best products and services. Companies rely on Software testing, which is one of the fundamen… Read More
2021-08-03 04:00
A study shows that there are over 3500 apps that are released on the google play store every day. Imagine the number of app developers that put in a number of hours to bring apps to our phon… Read More
2021-08-02 06:00
47-Hour Content on PHP, MySQL, GitHub, Heroku, Blazor, .NET & More! Master Top Programming Languages & Kickstart Your Career in IT Hey fellow geeks, This week, on our JCG Deals store… Read More
2021-08-02 04:00
Faker is an Open Source Python package that generates synthetic data that could be used for many things such as populating a database, do load testing or anonymize production data for… Read More
2021-08-01 12:15
When performing Selenium test automation, you would have come across umpteen scenarios where there is a need to verify the properties and values of the WebElements. For example, you might ne… Read More
2021-07-31 12:15
Using lightweight CSS frameworks to create responsive websites and web applications can significantly reduce delivery time. CSS frameworks have been around for a long time and are now widely… Read More
2021-07-30 04:00
One of the most common test automation challenges is how do we modify the request headers in Selenium WebDriver. As an automation tester, you would come across this challenge for any program… Read More
2021-07-29 04:00
Several years back, virtualization became a buzzword in the industry which flourished, evolved and became famously known as Cloud computing. It involved sharing computing resources on differ… Read More
2021-07-28 04:00
With an increasing demand for test automation services, organizations are looking at investing in the best test automation tools for their business. Selenium is on the top of their list beca… Read More
2021-07-27 04:00
Jupyter notebooks allows LaTeX rendering inside markdown. This way you can write complex math equations within a notebook. While LaTeX is the de facto standard for scientific documents… Read More
2021-07-26 06:00
Start Your Data Science Journey with 7 Courses & 23.5 Hours of Content on SQL — Retrieve, Analyze, Manipulate Data and More! Hey fellow geeks, This week, on our JCG Deals store, we… Read More
2021-07-26 04:00
This article launches a new series exploring the remote server management architecture. It’s focusing on presenting access to ways of mapping successful implementations for specific us… Read More
2021-07-25 12:15
Over the years, I’ve worked with teams at varying levels of Agile maturity. Some, completely new to Agile, others ‘doing’ Agile (talking the talk), and very few being Agile… Read More
2021-07-24 12:15
In the last few decades, the internet has seen tremendous growth; internet users are increasing each day, which has increased the demand for websites. Every stunning website has the support… Read More
2021-07-23 04:00
AWS is pretty good, with a lot of documentation. However, often you need to spot the detail you need among a bunch of documentation that’s not wrong, but isn’t quite going to cov… Read More
2021-07-22 04:00
Hello. In this tutorial, we will implement a Node.js JWT (JSON Web Token) to protect the application endpoints from unauthorized access. The Node.js framework is commonly used to create serv… Read More
2021-07-21 04:00
Hello. In this tutorial, we will create a simple node.js application and perform the CRUD operations with the MongoDB. The node.js framework is commonly used to create server-based applicati… Read More
2021-07-20 04:00
Apache Camel 3.11 has just been released. This is a LTS release which will be supported for 1 year with regular patch and security releases. This blog post first details the noteworthy chang… Read More
2021-07-19 06:00
Dive Deeper in the World of Web Coding with 8 Courses on Python, Ruby, Javascript, PHP, HTML, Bootstrap 4, MySQL & Node.js Hey fellow geeks, This week, on our JCG Deals store, we have an… Read More
2021-07-19 04:00
In a previous post I had gone over how a “Try” type can be created in Kotlin from scratch to handle exceptions in a functional way. There is no need however to create such a type… Read More
2021-07-18 12:15
In Java, we often have framework support for importing settings from the file system of our application. If we’re lucky, and we often are, these settings can be customised and overridd… Read More
2021-07-17 12:15
When our software outputs JSON, it can be hard to test. Consider this code: 1 2 assertThat(someJson) .isEqualTo(expectedJson); Assuming the rendering of the resulting json… Read More
2021-07-16 04:00
The previous article demonstrated how to implement cross-cluster Anthos Service Mesh (ASM) in a single network. In this article we will illustrate the mesh service communication using differ… Read More
2021-07-15 04:00
One of the advanced mesh constructs or topologies are multi mesh or cross mesh designs that aids in inter-cluster communication. With such a topology, each cluster will implement its own mes… Read More
2021-07-14 04:00
With time progressing, technology is transforming at a lightning speed to make the software development process much simpler, faster, qualitative and convenient. Technologies like machine le… Read More
2021-07-13 04:00
Selenium is the name that comes on top of our minds whenever we talk about automation testing. It has been the most preferred automation testing tool, loved by testers and developers worldwi… Read More
2021-07-12 06:00
18 Courses from Top Cyber Security Instructors to Take Your Ethical Hacking Expertise to the Next Level — From Python 3 to Complete NMAP Hey fellow geeks, This week, on our JCG Deals s… Read More
2021-07-12 04:00
In our previous article from this series shared a look at the logical common architectural elements found in a cloud adoption solution for retail organisations. The process wa… Read More
2021-07-11 12:15
In this post we will learn how we can use Kotlin extension functions to provide a simple and elegant type conversion mechanism. Maybe you have used Apache Sling before. In this case, you are… Read More
2021-07-10 12:15
If you’ve worked with Go before, you’ve probably seen this runtime error. 1 panic: runtime error: invalid memory address or nil pointer dereference The current solution is checki… Read More
2021-07-09 04:00
Hello. In this tutorial, we will create a simple node.js web server and handle the HTTP requests. The node.js framework is commonly used to create server-based applications which are further… Read More
2021-07-08 04:00
In my career I have noticed that often organizations are reluctant on providing Engineering teams with licenses for software to draw diagrams. In the best case scenarios MS Visio is us… Read More
2021-07-07 04:00
A quick guide to java 8 streams filtering concept with multiple conditions. This demonstrates how to use filter() in a more advanced way with examples 1. Overview In this tutorial, We’… Read More
2021-07-06 04:00
A quick guide to convert an array to iterable in java using Stream api with examples programs in two ways. 1. Overview In this tutorial, We will learn how to convert java array to iterable i… Read More
2021-07-05 06:00
Kickstart Your Lucrative Coding Career with 119 Hours of Content on HTML, Data Science, Different Programming Languages & More! Hey fellow geeks, This week, on our JCG Deals store, we ha… Read More
2021-07-05 04:00
A quick guide to convert List to String in java using different methods and apache commons api with examples. 1. Overview In this tutorial, we will learn how to convert List to String in jav… Read More
2021-07-04 12:15
Several of my clients struggle with their deadlines. One of them, Brad, quoted Douglas Adams to me and frowned: “I love deadlines. I love the whooshing noise they make as they go by.&r&hell…Read More
2021-07-03 12:15
Today I want to introduce TagUI, an RPA (Robotic Process Automation) Open Source tool I am using to automate test scenarios for web applications. It is developed and maintaine… Read More
2021-07-02 04:00
In our previous article from this series we introduced a use case around cloud adoption for retail stores. The process was laid out how we’ve approached the use case an… Read More
2021-07-01 04:00
In any rest-api based application it’s a matter of time when there is going to be the need to intercept the requests towards the application and execute more than one actions. If those… Read More
2021-06-30 07:00
Previously we had an introduction on the BigQuery Storage API and we proceeded reading data using the Arrow format. In this tutorial we shall read Data using the Avro format. What applied on… Read More
2021-06-30 04:00
We’ve all used dozens of serialization frameworks – for JSON, XML, binary, and ORMs (which are effectively serialization frameworks for relational databases). And there’s a… Read More
2021-06-29 04:00
Hello! In this tutorial, we will learn about Express.js File Upload. More specifically, we will handle the file upload in the node.js application. To perform the file upload we will use a si… Read More
2021-06-28 06:00
Be an In-Demand, Tech Professional in the Ever-Growing IT Field with 41 Hours of Content on IoT, Java, Robotics, Data Science & More Hey fellow geeks, This week, on our JCG Deals store… Read More
2021-06-28 04:00
In an earlier post about idempotency and safety of HTTP methods we learned that idempotency is a positive API feature. It helps making an API more fault-tolerant as a client can safely retry… Read More
2021-06-27 12:15
Many managers and teams talk about “average” durations for work. On average, how long does it take a team to finish a certain kind of work? However, average doesn’t quite e… Read More
2021-06-26 12:15
This article launches a new series exploring the cloud adoption architecture. It’s focusing on presenting access to ways of mapping successful implementations for specific use cases. I… Read More
2021-06-25 04:00
Previously we had an introduction on the BigQuery Storage API. As explained the storage API of BigQuery supports two formats. For this tutorial we will choose the Arrow Format. First let&rsq&hell…Read More
2021-06-24 04:00
The Quarkus dev mode increases our development productivity and especially reduces the turnaround times how long it takes to get test feedback. For Quarkus projects, this is a huge benefit… Read More
2021-06-23 07:00
1. Introduction This series of articles shows how one can process real time stream data using a number of technologies. The input data stream is flight data arriving real-time from a sensor… Read More
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