In-depth research on the JAVA class library JCOMMON Concurrency framework technology

In -depth research on the in -depth research of JCOMMON Concurrency framework technology Abstract: JCOMMON is one of the extensive class libraries in Java programming language. It provides many practical classes and methods to simplify concurrent programming.The in -depth research of this technology aims to discuss the technical principles of the JCOMMON Concurrency framework, and how to use it in Java applications to write high -efficiency and thread -safe code. 1 Introduction Concurrent programming is an important theme in the development of modern software, especially in multi -core computer systems.It allows us to perform multiple tasks at the same time to improve the response and performance of applications.However, concurrent programming also introduces a series of challenges, such as thread synchronization and dead locks.The JCOMMON Concurrency framework provides tools and technologies to solve these problems. 2. Brief introduction The Concurrency framework in the JCOMMON class library was built on the basis of Java.util.concurrent.It provides higher levels of abstraction, making concurrent programming easier to understand and achieve.The core categories in the JCOMMON Concurrent framework include Executor, ThreadPoolexecutor, and Future. 3. Executor interface and thread pool Executor is one of the core interfaces of the JCOMMON Concurrency framework, defining a standard interface for managing concurrent tasks.Through Executor, we can submit the task to the thread pool, which is managed and scheduled for the implementation of the task.Below is an example code using Executor: Executor executor = Executors.newFixedThreadPool(5); executor.execute(() -> { // Code executing concurrent tasks }); In the above example, we created a thread pool with a fixed size of 5 and submitted a task through the Execute method.The thread pool will be responsible for managing the life cycle and execution tasks of the thread. 4. ThreadPoolexecutor detailed explanation ThreadPoolexecutor is an implementation class of the Executor interface, which provides more configuration options to adjust the behavior of the thread pool.ThreadPoolexecutor can be constructed through a series of parameters, such as the number of core threads, the maximum number of threads, and the task queue.Below is an example code using ThreadPoolexecutor: ThreadPoolExecutor executor = new ThreadPoolExecutor( 5, // Number of core threads 10, // maximum number of threads 60, // Free thread timeout time Timeunit.seconds, // time unit New ArrayBlockingQueue <> (100) // Task queue ); executor.execute(() -> { // Code executing concurrent tasks }); In the above example, we created a thread pool with a core thread with 5 and the maximum number of threads, and using ArrayBlockingQueue as the task queue.ThreadPoolexecutor will dynamically adjust the number of threads and manage tasks according to the actual situation. 5. Future and results acquisition Future is another important concept in the JCOMMON Concurrency framework, which represents the result of an asynchronous calculation.Future can be used to submit tasks and obtain the execution results.Below is an example code using Future: ExecutorService executor = Executors.newSingleThreadExecutor(); Future<String> future = executor.submit(() -> { // Code executing concurrent tasks and return results return "Hello, World!"; }); String result = future.get(); System.out.println(result); In the above example, we submit a task using the submit method and show the execution results of the task as a Future object.By calling the Future's GET method, we can block the waiting task execution and get the final result. 6 Conclusion By studying the technical principles of the JCommon Concurrency framework, we understand how the framework simplifies concurrent programming and provides a high -level abstraction to process thread management and task scheduling.Using the JCOMMON Concurrency framework, we can write high -efficiency and security Java code, and make full use of the performance of the multi -core computer system. references: - Java Concurrency in Practice, Brian Goetz et al., Addison-Wesley, 2006. -Java concurrent programming art, Fang Tengfei, Xu Xiaobin, Machinery Industry Press, 2018. Note: This article only introduces the JCOMMON Concurrency framework technology, and provides some example code. Readers can refer to the more characteristics and usage of the framework with reference to related documents and official documents.