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“ 各位小伙伴大家好，又到了久违的周末。老规矩，周末我们依然进行回顾和总结，这次总结的内容，是上周的Java并发面试系列文章。
一
并发系列第一篇，照例采用场景驱动的方式，阐述了volatile关键字的作用。
首先，在我们假设的多线程场景下，出现了什么问题？然后volatile是如何闪亮登场，优雅的解决了问题。
并且我们仔细分析了其解决问题背后蕴含的原理是什么。
一周过去了，大家还记得吗？忘了没关系，猛戳下面链接，赶紧的复习一波吧。
点击下方文字直接跳转↓↓↓
大白话聊聊Java并发面试问题之volatile到底是什么？
二
CAS的全称是啥？你面试中有被问过CAS吗？对于简单的data++、data--这类的操作，CAS是如何保证其线程安全的？
最关键的，人家Java8对CAS机制做了什么优化？并且为什么要做这种优化？
^_^ 这一连串的连环炮问题，你是否能hold住呢？
点击下方文字直接跳转↓↓↓
大白话聊聊Java并发面试问题之Java 8如何优化CAS性能？
三
接着我们来到了Java并发中的AQS。首先问你，还记得AQS全称是啥吗？
嗯！是AbstractQueuedSynchronizer的缩写，非常好！
那AQS和ReentrantLock有什么关系？更进一步，你聊聊ReentrantLock加锁和释放锁的底层原理？
在Java并发这块的面试中，这些都是相当重要的技术点！趁着还没完全忘记，赶紧的复习一波吧！
点击下方文字直接跳转↓↓↓
四
说完了AQS，我们又聊了聊公平锁与非公平锁。同样采用场景驱动，用大白话的语言阐述了公平锁和非公平锁的概念以及背后的原理。
此外，我们结合了大量手绘彩图，尽量让你能够身临其境，更有画面感。尤其是感同身受一下这个非公平锁，他是多么的“不公平”！
点击下方文字直接跳转↓↓↓
五
并发系列面试问题最后一弹，我们把目标瞄准读写锁。以微服务注册中心为载体，深入阐述了微服务注册中心对读写锁的优化。
下次面试如果再被问到读写锁的问题，别再千篇一律的回答啥是读锁，啥是写锁。。。！
我们直接提升一个level，结合微服务注册中心，跟面试官聊聊微服务注册中心的读写锁优化，以及为什么要做这样的优化。
相信我，你这样答完以后，面试官一定对你眼前一亮！
点击下方文字直接跳转↓↓↓
END
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