博客

import java.util.Random;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;

public class CallableDemo {

    public static void main(String[] args) throws ExecutionException, InterruptedException {
        Callable<String> callable=new Callable<String>(){

            @Override
            public String call() throws Exception {

                return "返回值="+new Random().nextInt(200);
            }
        };
        FutureTask<String> futureTask =new FutureTask<>(callable);
        new Thread(futureTask).start();

        String result=futureTask.get();
        System.out.println(result);
    }
}