作者:锦成同学
?因为真的很简单~FutureTask实现了Future,提供了start,cancel,query等功能,并且实现了Runnable接口,可以提交给线程执行。Java并发工具类的三板斧状态,队列,CAS状态/***Therunstateofthistask,initiallyNEW.Therunstate*transitionstoaterminalstateonlyinmethodsset,*setException,andcancel.During