In Java, algebraic data types can be modeled precisely as sealed hierarchies whose leaves are records. Java's interpretation of algebraic data types have a number of desirable properties.

Covariance and contravariance might seem esoteric, but you'll need these concepts more than ever as the Java language evolves. Get started with type dependency in array types, generic types, and ...

The boxing and unboxing of Java primitive types has severe performance implications. Uncover the truth about autoboxing Java primitive types in this JDK Mission Control and JVM Flight Recorder example ...