Anytime we pass an interface with a method implementation to another method in Java, we are using the concept of a callback function ... Java developers use better programming practices to ...

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 ...

There are only half a dozen classes you really need to master to become competent in the world of functional programming. The ... that implements the interface and codes a concrete get() method.

It’s a good idea to use an abstract class when you need to implement mutable state. As an example, the Java ... oriented programming perspective, the main difference between an interface and ...