获取多线程的结果

import java.util.concurrent.*;

/**
 * 描述：多线程Future
 *
 * @auther husheng
 * @date 2020/5/23 0:46
 */
public class MultithreadingDemo {
 public static void main(String[] args) {
 ExecutorService executorService = Executors.newSingleThreadExecutor();

 //线程1
 Future<Integer> future1 = executorService.submit(new Callable<Integer>() {
 public Integer call() throws Exception {
 int a = 10;
 int b = 20;
 int c = a + b;
 return c;
 }
 });

 //线程2
 FutureTask<Integer> future2 = new FutureTask<Integer>(new Callable<Integer>() {
 public Integer call() throws Exception {
 int sum = 0;
 for (int i = 0; i < 10; i++) {
 sum += i;
 }
 return sum; //45
 }
 });
 executorService.execute(future2); //执行线程2


 //主线程获取线程1的结果
 try {
 Integer result1 = future1.get();//线程1结果
 Integer result2 = future2.get(400, TimeUnit.SECONDS);//线程2结果
 System.out.println("Result1=" + result1);
 System.out.println("Result2=" + result2);
 } catch (Exception e) {
 e.printStackTrace();
 }

 }
}



运行结果：
Result1=30
Result2=45