Final means the variable can't change. That's why global constants in Java use the static and final keywords. Example of static and final in Java Here's a static final example to further demonstrate ...

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

Method and variable handles vs. Java reflection To truly understand MethodHandles and VarHandles —what they do and why they are useful—it’s helpful to know a few things about reflection in Java.