JAVA多线程设计模式十 Two-Phase Pattern

public class Main {    public static void main(String[] args) {        System.out.println("main: BEGIN");        try {                       CountupThread t = new CountupThread();            t.start();            Thread.sleep(10000);            System.out.println("main: shutdownRequest");            t.shutdownRequest();            System.out.println("main: join");            t.join();        } catch (InterruptedException e) {            e.printStackTrace();        }        System.out.println("main: END");    }}

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