Abstract classes are an interesting piece of Java. They can’t be used on their own, and they have a unique place in our code. They are often confused with interfaces, but they provide a great way to prevent code duplication and ensure consistent structures when building an application.
¬†In this tutorial we want to look at what Abstract classes are and when to use them. We will take a look at the previous Interfaces lesson and see how we could refactor our code from that lesson to use an Abstract class.