Ever wonder why Java's const keyword is unimplemented? More specifically, why do we mark global constants in Java with both the static and final keywords? Why are Java constants static and final? The ...

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.

To use polymorphism, we can simply declare our variable type with List, and then choose any of the available instantiations. Here’s an example: List list = new ArrayList(); System. out.println ...