The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available.
See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases.
See JDK Release Notes for information about new features, enhancements, and removed or deprecated options for all JDK releases.
One of the biggest advantages of Nimbus is that it is highly customizable. You can change the look in almost any way you can imagine. You can use three primary techniques to modify the look of Nimbus: