JAVA线程池之ExecutorService Future Callable Submit简单应用

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import org.junit.Test;import java.util.*;import java.util.concurrent.*;/** * MainTest * Created by Joker on 2017/8/8. */public class MainTest {    private ExecutorService pool = Executors.newCachedThreadPool();    @Test    public void test() {        Set<Future<Object>> tasks = new HashSet<>();        tasks.add(pool.submit(() -> {            for (int i = 0; i <= 5; i++) {                System.out.println("[A]--->" + i);                Thread.sleep(1000);            }            return "A is over";        }));        System.out.println("<------------------>");        tasks.add(pool.submit(() -> {            for (int i = 0; i <= 5; i++) {                System.out.println("[B]--->" + i);                Thread.sleep(1000);            }            return "B is over";        }));        System.out.println("<------------------>");        tasks.forEach(task -> {            try {                System.out.println(task.get());            } catch (Exception e) {                e.printStackTrace();            }        });    }}

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