How to use the Java thread pool execute () method

In this article, the editor introduces in detail the "Java thread pool execute () method how to use", the content is detailed, the steps are clear, and the details are handled properly. I hope this article "Java thread pool execute () method is used" can help you solve your doubts.

First understand what the thread pool does * Thread pools address two different problems: they usually* provide improved performance when executing large numbers of* asynchronous tasks, due to reduced per-task invocation overhead,* and they provide a means of bounding and managing the resources,* including threads, consumed when executing a collection of tasks.* Each {@ code ThreadPoolExecutor} also maintains some basic* statistics, such as the number of completed tasks.

The thread pool deals with two different problems. The thread pool gives better performance to a large number of asynchronous tasks by reducing the overhead before the thread is officially called, while providing a series of bindings to manage task threads. Each thread pool contains some basic information, such as the number of tasks completed internally.

First, take a look at a series of private final AtomicInteger ctl = new AtomicInteger (ctlOf (RUNNING, 0)) representing the state of the ThreadPoolExecutor class; private static final int COUNT_BITS = Integer.SIZE-3