java并发－－原子操作_JAVA_编程开发_程序员俱乐部

参考：http://www.vogella.com/articles/JavaConcurrency/article.html#concurrency_overview

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• reading or writing a variable（except the variable is of type long or double）
• only and if volatile keyword was declared then operation type long or double variables
• i++ is not atomatic operation（AtomicInteger Or AtomicLong can handler this）