Introducing Behavioral patterns
In the previous chapters of the book, you learned about creational patterns (Singleton) and structural patterns (Façade). In this section, we will get a brief idea of Behavioral patterns.
Creational patterns work on the basis of how objects can be created. They isolate the details of object creation. Code is independent of the type of object to be created. Structural patterns design the structure of objects and classes so that they can work together to achieve larger results. Their main focus is on simplifying the structure and identifying relationships between classes and objects.
Behavioral patterns, as the name suggests, focus on the responsibilities that an object has. They deal with the interaction among objects to achieve larger functionality. Behavioral patterns suggest that while the objects should be able to interact with each other, they should still be loosely coupled. We will learn about the principle of loose coupling later in this chapter.
The Observer...
