Top Features of Java 21

Course details

In this course, developer Bethan Palmer guides you through the top features of Java 21. After an overview of the Java release cycle, dive into string templates, sequenced collections, and record patterns. Learn about pattern matching with switch statements, as well as how to use unnamed patterns and variables. Discover the new way to define main methods and find out what an unnamed class is. Plus, explore virtual threads and generational ZGC.

Learning objectives
Recall the most common features of Java 21
Summarize what each feature is
Demonstrate how to use the features

Concepts

0. Introduction

01 - Learn Java 21's top features

1. Java Release Cycle

02 - Understand the Java release cycle

2. String Templates

03 - Using String templates

3. Sequenced Collections

04 - Using sequenced collections

4. Record Patterns

05 - Using record patterns

5. Pattern Matching for Switch Statements

06 - Using pattern matching for switch

6. Unnamed Patterns and Variables

07 - Using unnamed patterns
08 - Using unnamed variables

7. Unnamed Classes and Instance main Methods

09 - Using unnamed classes and instance main methods

8. Virtual Threads

10 - What are virtual threads
11 - Using virtual threads

9. Generational ZGC

12 - What is Generational ZGC
13 - How does Generational ZGC work

Conclusion

14 - Next steps