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Going Beyond Java 8: Local Variable Type Inference (var)

According to some surveys, such as JetBrains's great survey, Java 8 is currently the most used version of Java, despite being a 2014 release.

What you are reading is one in a series of articles titled 'Going beyond Java 8,' inspired by the contents of my book, Java for Aliens. These articles will guide you step-by-step through the most important features introduced to the language, starting from version 9. The aim is to make you aware of how important it is to move forward from Java 8, explaining the enormous advantages that the latest versions of the language offer.

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Guide to Java Versions and Features

Java 8, Java 11, Java 13 — what's the difference?

You can use this guide to find and install the latest Java, understand the differences between Java distributions (AdoptOpenJdk, OpenJDK, OracleJDK, etc.), as well as get an overview of Java language features, including Java versions 8-13.

You may also like: Beyond Java 8

Background Information

First, let’s have a look at some common, practical questions that people have when trying to choose the right Java version for their project.

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Java Joy: Combining Predicates

Combining predicates in Java brings developers lots of joy.

In Java, we can use a Predicate to test if something is true or false. This is especially useful when we use the filter method of the Java Stream API.

You may also like: Towards More Functional Java Using Lambdas as Predicates

We can use lambda expressions to define our Predicate or implement the Predicate interface. If we want to combine different Predicate objects, we can use the or, and, and negate methods of the Predicate interfaces. These are default methods of the interface and will return a new Predicate.

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Stay Hip With the Latest Java and Spring Boot Using JHipster 6

Stay hip with JHipster for your Java and Spring Boot apps

If you’re confused by how OAuth 2.0 and OpenID Connect (OIDC) work together, please see What the Heck is OAuth? In short, OIDC is a thin layer on top of OAuth 2.0 that adds identity.

The Java world has been very busy lately, especially with all the major Java versions releasing every six months. This honestly can be a lot to keep up with. I was using Java 8 until I was introduced to Spring Boot 2.1.

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39 New Features (and APIs) in JDK 12

I’ve written several blog posts that list out all the changes for each of the most recent releases of Java (JDK 10, JDK 11). With JDK 12 just having been released, it seemed the obvious thing to produce another blog in this series. However, I’ll be looking at the flip side of this latter, focusing on some of the pitfalls that might cause problems, should you want to migrate an application to use this version.

We are now well into the new six-month release cadence and everything is working smoothly. I represent Azul on the Java SE JSR Expert Group, and we decided to switch this version to the revised JSR process. This is not radically different; it's more of a streamlining of the process to fit into the available time more easily.