Java多线程之合并线程Join

Join合并线程,待此线程执行完成后,再执行其他线程,其他线程阻塞,可以想象成插队

package lesson04;

public class TestJoin implements Runnable{
    @Override
    public void run() {
        for (int i = 0; i < 500; i++) {
            System.out.println("线程插队"+i);
        }

    }

    public static void main(String[] args) throws InterruptedException {
        TestJoin testJoin = new TestJoin();
        Thread thread = new Thread(testJoin);
        thread.start();

        for (int i = 0; i < 200; i++) {
            //当主线程执行到100的时候,让线程插队执行完之后,再执行
            if (i == 100) {
                thread.join();
            }
            System.out.println("主线程"+i);
        }
    }
}

 

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