- [Twitter Java Style Guide](https://github.com/twitter/commons/blob/master/src/java/com/twitter/common/styleguide.md) - [Google Java Style Guide](http://google.github.io/styleguide/javaguide.html) - [阿里巴巴Java开发手册](https://github.com/alibaba/p3c/blob/master/%E9%98%BF%E9%87%8C%E5%B7%B4%E5%B7%B4Java%E5%BC%80%E5%8F%91%E6%89%8B%E5%86%8C%EF%BC%88%E8%AF%A6%E5%B0%BD%E7%89%88%EF%BC%89.pdf)