Callable

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Callable

public class Test {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        FutureTask<Integer> futureTask = new FutureTask(new MyCallable());
        new Thread(futureTask,"a").start();
        System.out.println("ssssssssss");
//        while (!futureTask.isDone()){
//            System.out.println("not isDone");
//        }
        int result = futureTask.get();
        System.out.println(result);
        System.out.println(Thread.currentThread().getName()+"*****************");
    }
}

输出

into callable
2019
main*****************