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There are many reasons why you should use internal queues in your program. There are many good reasons to use internal queues in a program. Most common patterns contain the same principle - divide the processing into two separate parts, each of which can then work autonomously. Queues are the best way to move objects from one thread to another ...

join method example 1 Source code import java.util.concurrent.TimeUnit; public class JoinWaitTest { private static int a = 0; private static int b = 100; public static void main(String... args) throws InterruptedException{ Thread t = new Thread(new WaitThread()); t.start(); t.join(); ...

ForkJoinPool is the thread pool provided by JDK 1.7. In order to solve the problem of unbalanced CPU load. For example, a large task is executed by one thread while other threads are idle.   ForkJoinTask represents a task. Among the subclasses of ForkJoinTask are RecursiveAction and RecursiveTask. There is no result returned from recursive ac ...

Lock in jdk source code analysis (juc) - lock ReetrentLock in java Orange dead blog Please add this prompt for forwarding Lock of jdk source code parsing (juc) - lock ReetrentLock in java Lock interface Before the appearance of Lock interface, java realized the Lock function through synchronized keyword. After javase5, the Lock interface was ad ...

Both ConcurrentHashMap and Hashtable are thread safe K-V containers. This article starts with the source code, and briefly explains the implementation principle and difference between them.   Similar to HashMap, the bottom layer of concurrent HashMap is also implemented by array + linked list + red black tree, and K-V and hash are encapsulated ...

Business scenario The back end obtains data from the database and passes it to the front end. Data format obtained by backend: List Data format of front-end requirements: Json [scenario analysis] The data format obtained by the back end is List, while the data format required by the front end is Json. Therefore, the back end needs to reassemble ...

1. Generate a certificate. You can use self signed certificate or obtain it from SSL certificate authority center In JDK, keytool is a certificate management tool, which can generate self signed certificates. Here, use the keytool provided by JDK to create certificate tests Open cmd window, enter command keytool -genkey -ali ...

Remote call rmi protocol Objective: to introduce the design and implementation of rmi protocol and the source code of Dubbo RPC rmi. Preface dubbo supports RMI protocol, which is mainly implemented based on the org.springframework.remoting.rmi package encapsulated by spring. Of course, the most primitive is the java.rmi. * package that relies o ...

Factory mode is widely used, and can be seen everywhere in JDK low-level source code and major mainstream frameworks. Classes usually named after Factory, such as SqlSessionFactory in Mybatis and BeanFactory in Spring, are typical examples of factory mode. 1. Simple Factory Mode 1.1 Concepts Simple factory mode, also known as static factory mod ...

There are four common ways to create threads in Java. 1. Override the run() method of the Thread class. There are two forms of expression: 1) the new Thread object anonymously overrides the run() method package constxiong.concurrency.a006; /** * new Thread Object anonymous override run() method, start thread * @author ConstXiong ...