多线程Thread join()

Thread 类join方法,保证子线程执行完成后,再执行父线程,在start 后执行join有效

public class MainTest {
    @Test
    public void test4() throws InterruptedException {
        Thread t1 = new Thread(new Conn(), "t1")/*{//匿名内部类优先执行
            @Override
            public void run(){
                System.out.println(Thread.currentThread().getName());
            }
        }*/;
        t1.start();
        t1.join();
        System.out.println(Thread.currentThread().getName());

    }
}
class Conn implements Runnable {

    @Override
    public void run() {
      //流range IntStream.range(0, 1000).forEach(i -> { System.out.println(Thread.currentThread().getName() + i); try { Thread.sleep(1_000); } catch (InterruptedException e) { e.printStackTrace(); } }/*System.out::println //lambda 方法引用*/); } }

  

posted @ 2020-08-19 18:14  BigWrite  阅读(175)  评论(0编辑  收藏  举报