In Part 2 we’ll revisit those techniques using Java code that pre-dates Java 8. As you’ll see, this code is functional, but it’s not easy to write or read.

Many developers get intimidated when they look at all the new APIs that accept lambda expressions as arguments, and wonder how they’ll ever figure out which Java function to use and what the proper ...

Elliott Rusty Harold is blogging that functional programming in Java is dangerous . He's wrong, and he's way late to the party on this one--it's coming to Java whether he likes it or not.

Functional supplier interface in Java tutorial There are only half a dozen classes you really need to master to become competent in the world of functional programming. The java.util.function package ...