It may be academically named, but is incredibly simple in terms of its purpose and implementation. The function of the UnaryOpertor The function of the UnaryOperator interface is to take an object, do ...

Functional programming with a Java Consumer Sometimes programmers new to lambdas and streams get intimidated by the components defined in the java.util.function package, so I always like to remind ...

Interfaces don’t just provide a workaround to Java’s lack of support for multiple implementation inheritance. Interfaces factor out commonality across diverse class hierarchies, resulting in ...

The Java 2 SDK organizes its vast collection of classes and interfaces into a tree-like hierarchy of packages within packages, which is equivalent to directories within directories.