1.内存可见性 当一个变量被声明volatile时,它会保证被修改的值被立刻更新到主内存中,不会优化到寄存器或缓存中 2.禁止指令重排序 针对被volatile修饰的变量的读写相关指令,是不能被重新排序的 代码演示
class Counter{public int flag;
}
public class Thread3 {public stati…
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