Implementation code of readwritelock read-write separation of Java multithreading

In multithreaded development, there is often a situation where we want to separate reading and writing. For the read action, multiple threads can read the resource at the same time, but for the write action, only one thread can operate at the same time. At the same time, when a write thread is operating the resource, other read threads cannot operate the resource, which greatly gives play to the characteristics of multithreading, It can give full play to the ability of multithreading.

In Java, the readwritelock interface implements this requirement for us. Through its implementation class reentrantreadwritelock, we can simply achieve the effect just now. Next, we use an example to illustrate the usage of this class.

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