Java 8 has a new package, java.util.function, that contains a number of commonly used functional interfaces. Many are expressed using generics, but there are specializations for primitive types.

The move into functional programming in Java can be intimidating. There were a lot of new interfaces introduced in Java 8 to make working with Streams and lambda expressions possible. But, most of ...

Take your coding to the next level by learning advanced programming with generics. Here's how to use generic methods with type inference, type parameters, and wildcards in your Java programs.