Shulou(Shulou.com)06/03 Report--

This article mainly introduces "Why passive reference does not start from subclass initialization". In daily operation, I believe that many people have doubts about why passive reference will not start from subcategory initialization. I have consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the question of "Why passive reference will not start from subcategory initialization"! Next, please follow the editor to study!

1. If the subclass refers to the static field of the parent class, it will only trigger the loading and initialization of the subclass, but will not cause the initialization of the subclass.

two。 Referencing a class through an array definition does not trigger the initialization of this class

3. Constants are optimized during compilation and stored in the constant pool of the calling class, which is essentially not directly referenced to the class that defines the constant, so it does not trigger the initialization of the class that defines the constant.

At this point, the study on "why passive references will not be initialized from subclasses" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.