關於Future.cancel(mayInterruptIfRunning)方法的參數的問題


mayInterruptIfRunning設成false話,不允許在線程運行時中斷,設成true的話就允許。 
可以參考下面的代碼來理解,如果設為false的話,會打印到99999,如果設成true的話,可能就打印不到99999 

 

 

package interrupt;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

public class Future01 {


    public static void main(String[] args) {
        ExecutorService eService = Executors.newFixedThreadPool(5);
        Future<?> future= eService.submit(new RunFuture());
        try {
            Thread.sleep(10);
            future.cancel(false);
            //future.cancel(true);
            System.out.println("haha---------------");
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }



}
class RunFuture implements Runnable{
    int i=0;
    @Override
    public void run() {
        while (i<100000&&!Thread.currentThread().isInterrupted()/**/) {
            System.out.println("i++:"+i);
            i++;
        }

    }

}

 


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