This year Java hit an incredible milestone and reached the grand old age of 25 years. We celebrated its jubilee by running a special online Java day event, where lots of expert speakers shared their experience and gave tips and tricks on how to get more from the language. This got us thinking, and we decided to do a deep dive into the data to discover once and for all what the common state of Java is, and to help answer some of your burning questions. Some of what we have found may come as no surprise, but there are some very unexpected insights too. With Java 15 released this week, we decid

On the 10th July 2020, JetBrains hosted a Technology Day for Java. We had 10 presentations and the videos for them are available here. Over the coming weeks, in no particular order, we'd like to share with you extra resources that our speakers kindly provided and any links to further reading or code samples. We hosted Anna Morozova and Tatiana Vasilyeva from JetBrains Educational Products talking to us about teaching and learning Java with JetBrains. Here at JetBrains we are all very passionate about helping others in the community to learn Java. We provide free licenses to over one million st

In this tutorial we're going to look at features of JUnit 5 that can make it easier for us to write effective and readable automated tests. All code in this tutorial can be found in this GitHub repository. This blog post covers the same material as the video. This provides an easy way for people to skim the content quickly if they prefer reading to watching, and to give the reader/watcher code samples and links to additional information. (more…)

We’ve released a new bug-fix update for IntelliJ IDEA 2020.2. Let’s see what IntelliJ IDEA 2020.2.2 brings! You can update to the new version from inside the IDE, with the Toolbox App, or using snaps if you are an Ubuntu user. It is also available for download from our website. Check out the full list of changes in the release notes. If you have any suggestions for making IntelliJ IDEA better, please post them to our issue tracker or comment on this article. Happy developing!

On the 10th July 2020, JetBrains hosted a Technology Day for Java. We had 10 presentations and the videos for them are available here. Over the coming weeks, in no particular order, we'd like to share with you extra resources that our speakers kindly provided and any links to further reading or code samples. We hosted Monica Beckwith talking to us about garbage collection in OpenJDK Hotspot. Java has always been very good at taking out the trash with garbage collection functionality integrated from the beginning, however, it has evolved! Monica took us through the various garbage collection al

This post shows you five shortcuts that help you to navigate around IntelliJ IDEA quickly and efficiently. This blog post covers the same material as the video. This provides an easy way for people to skim the content quickly if they prefer reading to watching, and to give the reader/watcher code samples and links to additional information. The shortcuts covered in this post are: Search Everywhere - ⇧⇧ on macOS, or Shift+Shift on Windows/Linux Recent Files - ⌘E on macOS, or Ctrl+E on Windows/Linux Navigate to Implementation - ⌥⌘B on macOS, or Ctrl+Alt+B on Windows/Linux Find Usages - ⌥F7 o

On the 10th July 2020, JetBrains hosted a Technology Day for Java. We had 10 presentations and the videos for them are available here. Over the coming weeks, in no particular order, we'd like to share with you extra resources that our speakers kindly provided and any links to further reading or code samples. We hosted Trisha Gee talking to us everything that's happened since Java 8. Java 8 was a huge release for Java, finally bringing some much anticipated functional behaviours to the Java language. Java 9 followed up and although the module system is really interesting for certain types of ap

Java 15 introduces a new language feature – sealed classes and interfaces. The language syntax allows you to restrict the classes or interfaces that can extend or implement other classes or interfaces. The goal is to let you define the possible hierarchies in your business domain in a declarative manner, so that it is easier to process them. This language feature is introduced as a preview language feature. Java 15 also modifies the preview language feature Records, introduced in Java 14, and enhances the interfaces and enums you are used to working with. Pattern Matching for instanceof, intro

On August 20, 2020, we hosted a live webinar on 'Jakarta EE 9 and Beyond' by Ivar Grimstad, Jakarta EE Developer Advocate at Eclipse Foundation. This session combined an overview of Jakarta EE with live demos. You can develop your enterprise applications with IntelliJ IDEA Ultimate using Jakarta EE. IntelliJ IDEA Ultimate supports all Jakarta EE features, including CDI, JPA, Batch, Bean Validation, JSF, JAX-RS, WebSocket, Servlets, JSP, JSON-P, JSON-B, Security, and EJB and JTA specifications. Session details Ivar started the session with an overview of Jakarta EE, explaining what it is, its

On the 10th July 2020, JetBrains hosted a Technology Day for Java. We had 10 presentations and the videos for them are available here. Over the coming weeks, in no particular order, we'd like to share with you extra resources that our speakers kindly provided and any links to further reading or code samples. We hosted Josh Long talking to us about Test Driven Development (TDD) and the confidence it brings you in knowing that you're building the right thing according to the requirements. Josh showed us how we can use TDD in an incremental way to build our confidence and work faster with our new

JetBrains aims to make our products more accessible and easier to use for Asian markets. We’re localizing IntelliJ-based products into Chinese, Korean, and Japanese and are currently looking for localization QA engineers. Let us briefly describe the positions that are currently being advertised on our website. Our products have English as the source language and we hope that the new members of the IntelliJ IDEA team, being native or near-native speakers of the Simplified Chinese / Japanese / Korean languages, will help our localized products fit the needs of our users better and lower cultura

On the 10th July 2020, JetBrains hosted a Technology Day for Java. We had 10 presentations and the videos for them are available here. Over the coming weeks, in no particular order, we'd like to share with you extra resources that our speakers kindly provided and any links to further reading or code samples. We hosted Venkat Subramaniam talking to us about how big data, or highly responsive applications, can scale to the increasing demands for speed and short response. The smart solution comes from being lazy; laziness can translate to efficiency and scalability. In this presentation we start