This Best of Java Hands On Workshop introduces various improvements included in Java 9 up to the brand new Java 15. We will have a look at language and syntax improvements namely switch, records, text blocks and var as well as new api features in streams, strings and files, optionals, concurrency and HTTP/2, and many more. Your knowledge will be established by a lot of hands-on exercises. All in all you will receive a thorough overview of important features in modern Java. This should be helpful for software engineers and for architects to decide if Java 11, 14 or 15 is valuable for their products and to ease migration.On last thing to cover is one of the key features in Java 9: modularization. Due to the fact the this is not quite established since now in many companies in the real world we will just have an introduction with some migration hints. In summary, Java gets cooler and better with every new release. Let’s take a look together at important and helpful new features in the language and APIs.