Decorator pattern in action

- [Instructor] So, we've talked at a high … level about the decorator and how it's used. … Let's jump into code and take a … look at its actual implementation. … We're going to start with our base package in scr/main/java. … And we're going to create a new package. … This time, called decorator. … Now, one of the easiest examples to use … of a decorator is the concept of a pizza. … And that's what we're going to do. … So, we will create a class of Name: Pizza. … And we will make that class abstract. … Now, we're going to add a protected … string on here, called description. … And then we will create a public string, … getDescription method, that will return that description. … Then we're going to put a public abstract method, … that returns a BigDecimal, called getCost. … Okay. … So, now we've got our pizza. … So, let's create a concrete instance of a pizza. … And we will create a ThickCrustPizza. … Now, we're going to extend Pizza here. … And we will create a public ThickCrustPizza constructor. …