1. The Builder Pattern will help you generate sophisticated objects without the need to define them in the class you are going to use them in. 2. The Factory Pattern is really useful in situations...

1. The Builder Pattern will help you generate sophisticated objects without the need to define them in the class you are going to use them in.

2. The Factory Pattern is really useful in situations where you have multiple kinds of object from the same abstraction and you don't know which of them needs to be created by the time you start coding.

3. The Singleton Pattern is useful when you need a class that has only one instance during the software's execution.