Basic java learning – multithreading and locking (after the change, we will continue to supplement later)

Lambda expressions can first look at the reference address: https://blog.csdn.net/weixin_43417252/article/details/106233782 Jdk8 is a new feature to avoid too many anonymous internal class definitions. If any interface contains only one abstract method, it is a function and an interface. For functional interfaces, we can create interface objects directly through lambda expressions. Download the source code of this blog exercise at: https://github.com/chengYang-ape/ThreadDemo

1、 Thread