Java 21: Virtual Threads - A different async/await explained with Code Examples

Java 21 introduces lightweight concurrency with Virtual Threads.

Virtual threads are a different approach to asynchronous programming. Instead of having to rewrite everything using async/await keywords. Java will take care of everything.

Discover the changes introduced with JDK 21 and learn how Virtual Threads behaves with code examples demonstrating I/O Bound Tasks, CPU Bound Tasks, and Cooperative CPU Bound Tasks. Learn how the synchronized keyword and locks work in the context of Virtual Threads.

Code Examples available here:

Chapters:
0:00 Java 21 - Project Loom
0:32 Platform Threads
1:41 Virtual Threads
2:38 Carrier Threads
3:49 Code Examples
3:53 I/O Bound Tasks (Virtual Threads Example)
4:42 CPU Bound Tasks (Virtual Threads Example)
5:31 Cooperative CPU Bound Tasks (Virtual Threads Example)
6:08 The synchronized Keyword (Virtual Threads Example)
6:41 Locks (Virtual Threads Example)
7:09 Should I switch to Virtual Threads?

#java #javaprogramming #backend #backenddeveloper

[Phauglin]

Excellent explanation and visualization on an actual problem, not just printing "Hello World" lines. Thank you!

[josedavidforero]

Very clear explanation, thanks a lot.

[thilankaliyanaarachchi]

Quality content! Please keep them coming :)

[Asingh]

Now spring boot 3.2 supports virtual threads make a video on it how to use @Async with it

[RandomHandle]

The whole point of async/await in other languages is code cleanliness. None of this addresses Java's biggest shortcoming: nested/callback code hell!