Concurrency Quote by Brian Goetz
““Just as it is a good practice to make all fields private unless they need greater visibility, it is a good practice to make all fields final unless they need to be mutable.””
About This Quote
Source Book: Java Concurrency in Practice, 2006
Encourage encapsulation and immutability to reduce bugs and improve maintainability.
In simple terms: Make fields private and final unless needed otherwise.
Key Takeaway
Design for safety and clarity.
Themes
encapsulation
immutability
software design
Mood
practical
technical
Type
guideline
advice
When to use this quote
- API design
- team code reviews
- library development
- teaching OOP
Key Concepts
Object-oriented principles
defensive programming
Questions to Reflect On
- When should a field be mutable?
- How does immutability affect performance?
A Different Perspective
Overuse of final can hinder flexibility in some patterns.
