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.

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.

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 ...