JavaTim Feuerbach

New Language Features in Java 9-17

This course teaches you new language and API features introduced in Java 9 to 17 right in your favorite IDE:<ul> <li>the var keyword</li> <li>useful new API methods on Strings and streams</li> <li>new collection factory methods</li> <li>text blocks</li> <li>pattern matching with instanceof</li> <li>records</li> <li>switch expressions</li> <li>sealed interfaces and classes</li> </ul> The examples are accompanied by recommendations when to use these new features. Target audience: You are an intermediate to experienced Java developer, familiar with Java 8, and want to learn about the new features you can use when developing on JDK 17 in depth.

Skill levelAdvanced

Time to complete 3 days

Skill levelAdvanced

Time to complete 3 days

About this course

This course teaches you new language and API features introduced in Java 9 to 17 right in your favorite IDE:

the var keyword
useful new API methods on Strings and streams
new collection factory methods
text blocks
pattern matching with instanceof
records
switch expressions
sealed interfaces and classes

The examples are accompanied by recommendations when to use these new features.

Target audience: You are an intermediate to experienced Java developer, familiar with Java 8, and want to learn about the new features you can use when developing on JDK 17 in depth.

This course runs directly in your JetBrains IDE

Learn more

Content

Introduction

Local variable type inference (var)
Collection factory methods
Additions to the Stream API
Text Blocks
Additions to the String API

Defining and using records
Records and reflection

Pattern Matching with instanceof

Introduction to Switch Expressions
Defining and using Switch Expressions
Advanced Switch Expressions

Defining sealed interfaces and classes
Location of subtypes
Advanced topics for sealed types

Learn with the tools developers use every day

Zoom

Real-world development environment
Gain practical experience with the tools and workflows you'll use in your career, minimizing the learning curve when transitioning to real-world projects.
Project-based learning journey
Our plugin is built to help you finish real-world coding projects, which you can display in your code portfolio after completion.
Collaboration via Git
Effortlessly track changes and collaborate on projects using Git, an essential tool for programmers in every field.
Focused learning
Enjoy fewer distractions with assignments, code, debugging, and version control all in one window.

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Apply using your school email, student ID, ISIC card, or another official document.

What do you need to start?

Install the Free JetBrains Toolbox App

The JetBrains Toolbox App 2.7+ makes setting up your course effortless. Already have a compatible IDE? It will launch it. If not, the app will install the right free IDE for your course.

Learn more about our licences here.

Download

Confirm the course launch

Click Launch course and then Allow to open the Toolbox App.

Select Always Allow to skip this confirmation in the future.

To return to the course later, find it in your IDE's recent projects.

Need more help? Check out our guide.