Object Calisthenics.md

Object calisthenics

10 steps for better software design

1. Only one level of indentation per method
2. Don’t use the ELSE keyword
3. Wrap all primitives and strings (wrap primitive types in classes)
4. First class collections (wrap collections in classes)
5. One dot per line
6. Don’t abbreviate
7. Keep all entities small
8. No classes with more than two instance variables
9. No getters/setters/properties
10. All classes must have state