What is the easiest design pattern to learn?

Answer 1

I believe Singleton is one of the easiest design patterns to learn because you just need to do two things:

1. Make the constructor private
2. Implement a method to get an instance of your singleton class

For more details about this patter please see https://en.wikipedia.org/wiki/Singleton_pattern

All that being said, please keep in mind that Singleton is a pattern that is considered "evil", "stupid" and an "anti-pattern" depending on how it is used.

Answer 2

I'd say Builders.