If you want to master functional programming, the best place to start is with the Java Function interface. This example will show you four different ways to implement this functional interface in your ...

In this functional programming tutorial, we will work through a Java Supplier interface example. Java’s functional supplier interface can be used any time a function needs to generate a result without ...

In this Java tutorial for beginners ... This is the “Integrated Development Environment” or IDE: the interface used by developers to enter their code and call upon the JDK.

An interface can never have a state ... an abstract class when you need to implement mutable state. As an example, the Java Collections Framework includes the AbstractList class, which uses ...

The name of the functional interface is not part of the lambda ... There are (still) a few places where Java’s syntax seems awkward, however. With the addition of lambda expressions, Java ...