java多线程并发之旅-28-Executor CompletionService ExecutorCompletionService 详解
CompletionService接口定义了一系列的方法的接口。publicinterfaceCompletionService{Futuresubmit(Callabletask);Futuresubmit(Runnabletask,Vresult);Futuretake()throwsInterruptedException;Futurepoll();Futurepoll(longtimeou