[Java] 详解Java高阶语法Volatile

import lombok.extern.slf4j.slf4j;
 
@slf4j
public class testvolatile {
 //private volatile string author = "tjt"; // volatile修饰author保证两个线程到可见性，即不存在缓存cache中
 private string author = "tjt"; // 不用volatile修饰变量author则author修改值后在线程之间并不可见
 private boolean enable = false;
 public static void main(string[] args) throws exception {
  testvolatile testvolatile = new testvolatile();
  log.info("原始定义的author: "+testvolatile.author);
  thread thread = new thread( new runnable() {
   @override
   public void run() {
  testvolatile.testmethodone();
   }
  });
  thread.start();
  thread.sleep(2000l);
  testvolatile.testmethodtwo();
 }
 public void testmethodone() {
  while(true) {
   if ("detect_tjt".equals(author) && enable == false) {
  log.info("线程testmethodone中检测到来author修改为: "+author);
  enable = true;
  system.exit(0);
   }
  }  }
 public void testmethodtwo() {
  author = "detect_tjt";
  log.info("线程testmethodtwo中把author修改为: "+author);
 }
}