Java 9 to Java 17: Learn 12 additions in around 60 mins

About Java 9 to Java 17: Learn 12 additions in around 60 mins

This crash course is for Java developers who want to quickly learn 12 additions to the Java language between Java 9 and Java 17, the current Long Term Support release. Since Java 9, the Java language and platform contain numerous changes but the twelve features introduced in this course will get utilized often in your day-to-day life as a Java programmer.

The course is driven completely using examples, every feature explained via code in around 5 minutes.

In some of the examples, we will utilize JUnit, OpenJFX, Jackson, and OpenCSV - You don't need to know any of these libraries. The focus will be on the 12 features.

Basic knowledge of Maven and JUnit is required.

You will also get to reinforce your learning by solving a bunch of interesting exercises.

We will go through the following:

Learn how to create unmodifiable collections using Collection Factory methods

Learn how to utilize handy methods introduced in the Collectors class for flat mapping and filtering elements in a stream pipeline

Learn how to write concise code using Local-Variable Type Inference

Learn handy API changes in String, Files class, and the Predicate, Path interface

Learn to utilize the Teeing Collector to perform 2 operations on every element in the Stream and then merge results

Learn Switch Expressions to write code that is easy to understand

Detect the exact cause of a NullPointerException by using Helpful NullPointerExceptions

Learn how to represent multi-line Strings using Text Blocks

Learn Pattern Matching for instanceof

Create Immutable data carriers using Records

Close your hierarchy using Sealed Classes

By the end of the course, you will get a good understanding of Modern Java features.

These features will help you be a more productive programmer.