Volatile 可见性例子
2020-04-05 本文已影响0人
wuli白
public class Volatile {
static boolean stop = false;
public static void main(String[] args) throws InterruptedException {
new Thread(() -> {
while (!stop) {
}
System.out.println("I am done");
}).start();
new Thread(() -> {
try {
Thread.sleep(1000L);
} catch (InterruptedException e) {
e.printStackTrace();
}
stop = true;
}).start();
Thread.sleep(3000L);
}
}
场景:设置一个标识位为volatile,防止多次启动