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How to Install Maria DB, create Database and Execute Queries

Hello Friends, In this tutorial,we will see : 1. How to Install Maria DB2. How to connect to Maria DB,Create Database and Execute Queries 1. How to Install Maria DB 1.1 Go to following link and click on “Download 10.4.12 Stable Now!” button.As of writing this post,latest stable release of Maria DB is 10.4.12.Please check for latest stable release when you  ...

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What Is Parallel Testing And Why To Adopt It?

With the advancement in technology, testing solutions have become more scalable than ever, as organizations moved to Selenium test automation from manual testing. But, one area that most organizations are still struggling with is the scalability to run multiple tests in parallel. Many corporations are still using sequential testing methods to deliver quality assurance, which consumes a lot of time, ...

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Using IdeaVim with IntelliJ

I’ve been a VIM user for a few years and I’m also using the IdeaVim plugin in IntelliJ. The following configuration and features helped me a lot. You can configure the same keymappings that you have in your regular VIM in the ~/.ideavimrc file.Setting idearefactormode to keep makes the behavior of refactorings such as renamings more deterministic.In a dialog hitting ...

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Supersonic subatomic Enterprise Java from the ground up

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I’ve created a video in which I explain “supersonic subatomic Java” with Quarkus, a runtime for modern Java applications. Whether you’re just starting out in the world of Enterprise Java or whether you’re already an experienced Java EE / J2EE developer, this session will guide you towards how to build modern cloud-native microservices in the year 2020. In this video, ...

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Exact Absolute Integral Numbers in JDK 15

JDK 15 Early Access Build b18 introduced new methods to the Math and StrictMath classes that will throw ArithmeticException on provided values outside the range supported by the methods without overflow. These methods bring to the concept of “absolute value” in Java what the methods such as Math.addExact, Math.subtractExact, and Math.multiplyExact have brought to basic arithmetic functions. Prior to JDK ...

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ReactJS File Upload Example

In this article we build a File Upload Feature using ReactJS. ReactJS has gained ground and has become the go to library for Front end Development. We take a look at how to build a feature to upload files in a ReactJS Application. We will use the ubiquitous XMLHttpRequest Object to post the file data to the server. Also, we ...

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Build Reactive REST APIs with Spring WebFlux – Part1

java-interview-questions-answers

In this article, we will see how to build reactive REST APIs with Spring WebFlux. Before jumping into the reactive APIs, let us see how the systems evolved, what problems we see with the traditional REST implementations, and the demands from the modern APIs. If you look at the expectations from legacy systems to modern systems described below, The expectations ...

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Java puzzlers from OCA part 4

In the fourth part of Java Puzzlers, we have something related to char type. 1 2 3 4 5 6 7 8 9 public class Puzzler {       public static void main(String[] args){         char myChar = 'a';         myChar++;           System.out.println(myChar);     } } You may have guessed it. It will print “b” and the reason for it is that char type ...

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