2021-04-08 04:00
1. Introduction In this last part of the tutorial we are going to speculate about the future of GraalVM, both from the short-term and long-term perspective. I think there are three main them… Read More
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2021-04-07 07:00
1. Introduction In this article, You will learn how to write a java program to add two numbers without using + or ++ operators. This looks quite interesting for freshers to think beyond thei… Read More
2021-04-07 04:00
A quick guide on how to make a file read only in java using setReadOnly() method from File API. 1. Overview In this article, We’ll learn how to make a file as read only in java. After… Read More
2021-04-06 07:00
A lot has been said about JDK’s new 6 months release cadence cycle, and arguably, this is one of the most profound decisions being made in the recent history of the language and JVM pl… Read More
2021-04-06 04:00
A quick guide to delete the files and folders in java with example programs. 1. Overview In this tutorial, We will learn how to delete the files and folders in java. Let us learn the example… Read More
2021-04-05 07:00
So you have a function which takes a key and returns a project reactor Mono type. 1 2 3 4 Mono get(String key) { Random random = ThreadLocalRandom.current(); &n&hell…Read More
2021-04-05 06:00
Build Your IT & Data Science Skill Set with 212 Hours of Curated Content on Python, Linux, TensorFlow, Discrete Math, and More Hey fellow geeks, This week, on our JCG Deals store, we hav… Read More
2021-04-05 04:00
In this evolution of technology, the level of test automation has significantly increased not only in terms of quantity but as well in quality. A lot of companies are now switching to test a… Read More
2021-04-04 12:15
How should agile coaches work? I’ve heard several questions and problems around what agile coaches should and should not do. Should agile coaches focus on: How well the teams use their… Read More
2021-04-03 12:15
It has been widely acknowledged that coding is an art, and like every artisan who crafts wonderful art and is proud of them, we as developers are also really proud of the code we write. In o… Read More
2021-04-02 07:00
One of the solutions to code quality is peer review. Some suggest that pairing – i.e. live peer review – is the only answer, I’m more flexible. There’s every reason t… Read More
2021-04-02 04:00
Introduction Selenium is the most preferred tool of all times when it comes to automating web applications. Selenium supports many unit testing Frameworks based on multiple programming langu… Read More
2021-04-01 07:00
If I want to solve many data sets of a planning problem every night, what architecture can easily scale out horizontally without loss of data? In this article, we will take a look at how to… Read More
2021-04-01 04:00
Pattern matching for the instanceof operator was introduced as a preview feature with JDK 14 and was finalized with JDK 16. Because instanceof pattern matching is finalized for JDK 16, it is… Read More
2021-03-31 07:00
Programming is very much a flow activity in which we can fully immerse ourselves into the task. But there are differences in how much our local development setup allows us to do so, especial… Read More
2021-03-31 04:00
When it comes to business operations, it’s easy to get comfortable in the status quo. Change seems daunting, especially in the context of legacy software. But often, just because a rel… Read More
2021-03-30 07:00
Hi, This time to announce a new Java / JavaFX library I’ve just released. It’s called FXSkins. FXSkins is a collection of new Skins for existing JavaFX controls. These Skins will… Read More
2021-03-29 06:00
From Search Engine Optimization to Social Media Management: This is Your Comprehensive 52-Hour Guide to Digital Marketing in 2021 Hey fellow geeks, This week, on our JCG Deals store, we have… Read More
2021-03-29 04:00
I have worked with Spring Framework for ages and it still manages to surprise me with how cutting edge it continues to be but at the same time enabling a developer to put together a fairly s… Read More
2021-03-28 13:15
The below code shows the different ways one can declare and initialize an Array in Java: 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 import java.util.Arrays… Read More
2021-03-27 13:14
In one of my previous post, I had created an API to upload file. In this post I will write a JUnit test to test the API. We will test the complete flow right from uploading till it is copied… Read More
2021-03-26 08:00
During the course of automated cross browser testing, you might come across scenarios that may not have been thought about during the product development phase. For example, when using Selen… Read More
2021-03-26 05:00
Basic question: why do we write our tests first and make sure they go red? Answer: because it’s possible that a test we write to test a feature after the fact would go green anyway, be… Read More
2021-03-25 08:00
Introduction Everyone loves Agile and the way it is replacing all the older methodologies and development models with a streamlined and sustainable system for faster delivery cycles. However… Read More
2021-03-25 05:00
It’s an interesting challenge creating architectural content based on common customer adoption patterns. That’s very different from most of the traditional marketing activities u… Read More
2021-03-24 08:00
The open-source software movement is a clearly a powerful phenomenon. A diverse (in time, geography, interests, gender (hmm not really, not yet, hrmph), race, skills, use-cases, age, corpora… Read More
2021-03-24 05:00
Our software tends to use a lot of thread pools – mostly through java.util.concurrent.ExecutorService implementations (Created via Executors.new.... We create these for various async u… Read More
2021-03-23 11:00
1. Introduction Along the previous parts of the tutorial we have talked a lot about GraalVM‘s groundbreaking impact on the JVM, its future and the ecosystem. The question we have left… Read More
2021-03-23 08:28
$100,000 HackathonJoin us April 15 – May 15 to show the world what you can build on Redis for a chance to win big prizes totaling US$100,000! Rediscover the power of real-time data at… Read More
2021-03-23 05:00
Continuous integration, or CI, refers to the culture and the technologies that enable continuously merging features and bug fixes into the main branch of the codebase. Code changes are incor… Read More
2021-03-22 07:02
This 41-Hour Bundle is Your Ultimate Guide to Learning Python — From Beginner Stage to the Advanced Level Hey fellow geeks, This week, on our JCG Deals store, we have another extreme o… Read More
2021-03-22 05:00
The fact is not alien to us anymore that cross browser testing is imperative to enhance your application’s user experience. Enhanced knowledge of popular and highly acclaimed testing f… Read More
2021-03-21 13:15
In my previous article from this series shared a look at the logical common architectural elements found in supply chain integration for retail stores. The process was laid ou… Read More
2021-03-20 13:15
We continue our effort to optimize Apache Camel. This is blog post part 7 which covers are latest effort on dramatically reducing the object allocations caused by Camel while routing message… Read More
2021-03-19 05:00
An injection attack is the insertion of malicious data from the client to the application using SQL or XXE (XML External Entity).It is important to prevent injection attacks because it allow… Read More
2021-03-18 08:00
1. Introduction Until now we have discussed the GraalVM exclusively in the context of the JVM platform. It is not surprising taking into account all the advantages that JVM applications and… Read More
2021-03-18 05:00
Caching facilitates faster access to data that is repeatedly being asked for. The data might have to be fetched from a database or have to be accessed over a network call or have to be calcu… Read More
2021-03-17 08:00
As per the browser market share, Google Chrome is said to be the most used cross-platform browser in the world. Every new chrome version comes up with an exciting feature that hikes the impo… Read More
2021-03-17 05:00
Functional programming languages like Scala often have a type called “Try” to hold the result of a computation if successful or to capture an exception on failure. Thi… Read More
2021-03-16 05:00
The next sentence is a lie. I don’t believe in performance testing. It’s a lie for two reasons: We recently gave an apprentice a task that was essentially learn how to performanc… Read More
2021-03-15 07:00
From Mobile & Video Game Building to Monetization, Master the Best Animation Development Practices Across 146 Hours of Training on Unity and Blender Hey fellow geeks, This week, on our J… Read More
2021-03-15 05:00
In my previous article from this series I introduced a use case around supply chain integration for retail stores. The process was laid out how I’ve approached the… Read More
2021-03-14 13:15
If you’ve been following my writing over the last few years, you’ve grown accustomed to my sharing of various architecture blueprints. They’re focusing on presenting access… Read More
2021-03-13 13:15
Dependency injection is a common technique in today’s software design. With dependency injection we pass dependencies to a component instead of creating it inside the component. This w… Read More
2021-03-12 08:00
In this blog we will go through one of the most important features of java 9, which is ‘Modules’ aka ‘Java Platform Module System (JPMS)’. We will understand everythi… Read More
2021-03-12 05:00
Jackson Kotlin module library is a pleasure to use. It greatly simplifies gnarly code, specifically one’s involvingTypeReference. Consider a sample json which looks like this: 1… Read More
2021-03-11 08:00
If you have a website for consumer products, you must know that some challenges exist only with these websites; one such challenge is ensuring that the functionalities work expectedly across… Read More
2021-03-11 05:00
Back in the old days, software testing was just about finding errors in a product. The goal being – to improve product quality. But nowadays, the range of software testing has broadene… Read More
2021-03-10 08:00
While I’m not quite going to blame Java’s final for the following, I’ve said before how final should have its place, and that it’s often just noise in other code. In… Read More
2021-03-10 05:00
1,667 available plugins and solutions on the Eclipse marketplace online! By the time you read this there are probably even more. If you venture beyond the official marketplace you will find… Read More
2021-03-09 08:00
Parameterization in TestNG is also known as Parametric Testing which allows testing an application against multiple test data and configurations. Though we have to consider the fact that exh… Read More
2021-03-09 05:00
This post shows you how to perform unit testing using temporary files with JUnit 5. If you’re still on JUnit 4, please check out my previous post! In JUnit 5, the @TempDir annotation i… Read More
2021-03-08 08:00
Ruby web development is recognized for its simplicity and efficiency. It is also called “launch technology”. However, prototyping web applications will become even faster if you… Read More
2021-03-08 07:00
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
2021-03-08 05:00
I’ve been speaking with several possible clients. They’re having trouble with Scrum. The managers don’t believe the teams need product owners, so the teams don’t have… Read More
2021-03-07 13:15
Oooh, it’s a nuisance when you write and write automated tests for code that’s supposed to depend on the current time. Stuff’s going to go wrong. There are essentially two… Read More
2021-03-06 13:15
There are some strong reasons why we may want to make genuinely immutable objects. Then there are various frameworks which operate on mutable objects, thus preventing us from using an immuta… Read More
2021-03-05 11:00
A quick guide on how to sort the arraylist in descending order or reverse order in java and example programs using Collections.reverseOrder() method. 1. Overview In this article, We will lea… Read More
2021-03-05 08:00
A quick guide to sort HashMap by value in java and new java 8 api in ascending or descending order. 1. Overview In this tutorial, We will learn how to sort HashMap by value using java 8 API… Read More
2021-03-05 05:00
A quick guide to java string based interview programming questions and examples. 1. Overview In this article, We will see what are the String programs frequently asked in the java interviews… Read More
2021-03-04 11:00
Testing solutions have become more scalable with the advancement of technology, easing organizations’ move from manual testing to Selenium test automation. But nothing comes easy. Runn… Read More
2021-03-04 08:00
An encountered NullPointerException can be a useful mechanism for highlighting when a certain code flow or certain data has led to unexpected results (and the messages provided by NullPointe… Read More
2021-03-04 05:00
When you use the managed Elasticsearch service on AWS, you usually choose an encrypted connection (via KMS-managed keys), which means you can’t use just any tool to connect to your Ela… Read More
2021-03-03 11:00
In this video, I’m showing how to create effective UI system tests with Selenium. In my previous video course on effective testing, I’ve introduced the coffee shop application, w… Read More
2021-03-03 08:00
If you ever need to capture the smallest or largest “n” from a stream of data, the approach more often than not will be to use a simple data-structure called the Priority Queue… Read More
2021-03-03 05:00
Cross-site scripting (XSS) is a type of security vulnerability in web applications where an attacker injects malicious scripts through some kind of user input (like input boxes, URL paramete… Read More
2021-03-02 08:00
Introduction Writing good technical documentation is an art. An art is the expression or application of human creative skill and imagination, … to be appreciated primarily for their b… Read More
2021-03-02 05:00
With the rapid advancements in technology and digitization, businesses strive to get the best out of it and ensure their web app runs smoothly on all browsers and platforms. In today’s… Read More
2021-03-01 07:00
Master the Art of Programming & Web Development with 15 eBooks on Python, Artificial Intelligence, TensorFlow and More! Hey fellow geeks, This week, on our JCG Deals store, we have anoth… Read More
2021-03-01 05:00
TestNG is an open-source automated testing framework, where ‘NG’ of TestNG is Next Generation. It is similar to JUnit but designed to be better than JUnit, especially when testin… Read More
2021-02-28 13:15
WakaTime’s infra is split across DigitalOcean and AWS. We use DigitalOcean Droplets for compute resources, AWS S3 to store code stats, and DigitalOce… Read More
2021-02-27 13:15
1. Introduction In the third part of this series of articles about real-time stream processing we learned how to import the .json flight data files to ElasticSearch using its bulk API as wel… Read More
2021-02-26 08:00
Redis is an in-memory database with very high write and read speed, and a limitation that data sets can’t be larger than available RAM. It’s like memcached but sup… Read More
2021-02-26 05:00
Writing asynchronous code in Javascript is relatively easy. // async function let attempt = 1; while (true) { try { const result = await operationThatMayFail(); // it didn't fail return resu… Read More
2021-02-25 08:00
When writing a test it’s important to test both positive and negative scenarios. It’s important to test edge cases. However, when choosing test data, the test data needs to illus… Read More
2021-02-25 05:00
As soon as we hear the word mobile, we realize that it has majorly occupied the human space. Internet, videos, music, social networks, navigation, etc. you name it and you’ve got it. T… Read More
2021-02-24 08:00
Concurrency control can be an important part of a REST API, especially if you expect concurrent update requests for the same resource. In this post we will look at different options to avoid… Read More
2021-02-23 08:00
In our previous post, we saw how to upload a file using the Spring framework’s default implementation for MultipartFile interface. In this post, we will see how we can use the Commons… Read More
2021-02-23 05:00
Uploading files is one of the most common operations in a web application. In this article we will look at how to upload file from an HTML page and copy it to the file system on the server… Read More
2021-02-22 07:00
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
2021-02-22 05:00
There are a lot of developers creating thousands of new apps almost every day. With so many apps available in the market, there is no room for error, as consumers are looking for the quality… Read More
2021-02-21 13:15
Automation testing can be a highly effective productivity booster and quality enhancer for both, your product pipeline and system development projects if implemented correctly. However, it c… Read More
2021-02-20 13:15
The app industry is seeing an exponential growth year on year with nearly 71 billion app downloads in 2020. Globally the growth of app downloads from 2019 has seen a 45% increase. With the i… Read More
2021-02-19 08:00
There are three things in EOLANG (and the 𝜑-calculus which we based it on): data, atoms, and objects. There is a dataization function, which puts all three together in order to make… Read More
2021-02-19 05:00
We all know, the biggest challenge for any organization is the changing needs of the customers and finding a way to address these quickly without any compromise on quality. Agile Software De… Read More
2021-02-18 08:00
Introduction In this article, I will contemplate the testing of private methods in unit tests. After that, I will propose a way or pattern to do it, if you must. Finally, I will show how you… Read More
2021-02-18 05:00
This article is a walk through how to take an existing project, in this case I’m using a business automation project, and migrating from running locally on an application server to dep… Read More
2021-02-17 08:00
The majority of organizations are already deep in their DevOps maturity. Most researches are showing over 40% that adopted the process, and are moving towards automated processes, shift-left… Read More
2021-02-17 05:00
With the expectation to become a $623 billion market by 2023, cloud computing is firmly planted in the technological field. Specifically, the more information that’s created, the highe… Read More
2021-02-16 10:40
Java is a popular programming language that was launched 25 years ago by the Oracle Corporation. It is mainly used for application development and works best for large scale applications, es… Read More
2021-02-16 08:00
In my role as a software development consultant, I am often called on to boost software development practices up to the next level. Although I’ve written checklists in the past for doi… Read More
2021-02-16 05:00
Container Orchestration | Definition, Benefits & How It Works In the 1970’s, the concept of a container-based application emerged to transform the IT world. For the first time, the… Read More
2021-02-15 07:00
Calculus, Number Theory, Clustering & More! Train with 96 Hours of Essential Math Content and Its Applications from Highly-Rated Instructors Hey fellow geeks, This week, on our JCG Deals… Read More
2021-02-15 05:00
1. Introduction The shift towards cloud computing has had a massive impact on every single aspect of the software development process. In particular, the tools and frameworks the developers… Read More
2021-02-14 13:15
Before going into detail on this subject, I should point out that one experience does not itself make for a powerful data set. I may come back to this and revise my observations. However, I… Read More
2021-02-13 13:15
This is not about Buddy Holly, and while it’s going to cover Big O notation, it’s not about The Big O himself: Roy Orbison. I’d like to share a problem and solution with yo… Read More
2021-02-12 08:00
A lot of teams follow these rules. The question is why!? The rules are: Use GitHub flow – i.e. master is the stable trunkEverything else should be a feature branchFeature branches are… Read More
2021-02-12 05:00
Organizations today ought to understand thoroughly that there is a critical difference in implementing an effective test automation strategy and a continuous testing strategy. Adopting Conti… Read More
2021-02-11 08:00
Validation in Spring Boot applications can be done in many different ways. Depending on your requirements some ways might fit better to your application than others. In this post we will exp… Read More
2021-02-11 05:00
Open source is the current norm for developer collaboration and customer adoption in software. It is the foundation that enabled unicorns and cloud providers to build their services from the… Read More
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