join方法

`

public class TestThreadJoin  implements Runnable{

    @Override
    public void run() {
        for(int i = 0; i< 1000;i++){
            System.out.println("子线程执行次数"+i);
        }
    }

    public static void main(String[] args) {
        TestThreadJoin threadJoin = new TestThreadJoin();
        Thread thread = new Thread(threadJoin);
        thread.start();
        for(int i = 0; i< 10;i++){
            if(5 == i){
                try {
                    thread.join();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            System.out.println("主线程执行次数"+i);

        }

    }
}