Shulou(Shulou.com)06/01 Report--

Today, I will talk to you about how to use the synchronized keyword in Java. Many people may not know much about it. In order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article.

1. Modify the instance method with the synchronized keyword

In our Java, each object has a lock and two queues, one for suspending threads that have not acquired the lock, and one for suspending threads that have to wait because the conditions are not met. And our synchronized is actually an integration of locking and releasing locks. Let's look at an example:

Public class Counter {private int count; public synchronized int getCount () {return this.count;} public synchronized void addCount () {this.count++;}} public class MyThread extends Thread {public static Counter counter = new Counter (); @ Override public void run () {try {Thread.sleep ((int) (Math.random () * 100));} catch (InterruptedException e) {e.printStackTrace () } counter.addCount ();}} public static void main (String [] args) {Thread [] threads = new Thread

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