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Interested to learn about Visualization tool? Check our series of articles about Tracker and Visualization tool for Apache Spark.

1. IntroductionJava 8 added a new set of packages to provide a comprehensive date-time model. J…

CoolBeans is an IDE distribution which promises to package the best there is in the Apache NetBeans ecosystem. We talked to Emilian Bold about this project.

How to Write Reactive Applications with MicroProfile

Interested to learn about Maven Build? Check our article explaining how to solve the invalid target release 1.7 or 1.8 error in maven.

A quick and practical introduction to batch processing in Java EE7.

Binary tree based questions are very common in Java or any other Programming job interviews. One of the frequently asked binary tree questi…

A quick and practical comparison of BufferedReader, Console, and Scanner in Java.

Java 8 introduced default methods in interfaces. This post describes what they are, and how they can change the design of APIs. A nominal design Earlier, in Java, interfaces could only have contracts – method signatures with no implementation. In order to add some implementation, a class was required, whether abstract or not. Hence, traditional API design then followed this hierarchy: …

An illustrated guide of what to learn in 2019 with links to relevant courses

Hello guys, do you want to learn how to avoid deadlock while writing concurrent programs, especially in Java? Writing correct concurrent…

To run your application or server over HTTPS you’re going to need a certificate. Commonly referred to as an SSL or TLS certificate, this is a guide on how to register one using Let’s Encrypt’s Certbot and then how to configure Payara Server to use it.

Learn how to sort arrays or primitive types and objects in ascending and descending order

I have an array which carry some integer numbers. Say,numbers={3,0,1} or say, numbers={9,6,4,2,3,5,7,0,1}. Now I have to find out the missing numbers from the array. As per this example there is on…