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@[toc]线程的生命周期JDK中用Thread.State类定义了线程的几种状态要想实现多线程，必须在主线程中创建新的线程对象。Java语言使用Thread类及其子类的对象来表示线程，在它的一个完整的生命周期中通常要经历如下的五种状态：新建：当一个Thread类或其子类的对象被声明并创建时，...

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