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Java编译器、运行时会对指令进行重排序。这种重排序在单线程和多线程情况下分别有什么影响呢？数据依赖性如果两个操作访问同一个变量，且这两个操作中有一个为写操作，此时这两个操作之间就存在数据依赖性。数据依赖分下列三种类型：-------- -------------- ----------------...

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深入理解Java内存模型（二）——重排序

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