As I was thinking about the remaining differences between Java interfaces and abstract classes in a JDK 8 world, I decided to see what the Java Tutorial had to say on this.

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

It’s just that simple. Don’t overcomplicate Java’s Function interface. Some people can find the simplicity of the Java Function interface to be a bit confusing. After all, a method that takes ...