• K-9 Code Style
• Java
• Package Names
• Imports
• Classes
• Methods
• Variable Names
• Constants
• If / Else
• Switch / Case
• Comments
• TODO / FIXME / etc
• Javadoc
• XML
• Lint / CheckStyle / FindBugs
• Automated Testing
• Enforcement And Improvement
• Other notes on general code quality
• Line endings