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 ...

For example, the two-member access operators in java.lang.System separate package name java from the lang subpackage name and separate subpackage name lang from the System type name.

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.

The reason this can become a nuisance is that some methods in Java will actually force the user to handle exceptions. This is where “try catch” in Java comes into play.