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    1. package com.pln.state;
    3. public class TestJoin implements Runnable{
    4.     @Override
    5.     public void run() {
    6.         for (int i = 0; i < 1000; i++) {
    7.             System.out.println("我要插队啦"+i);
    8.         }
    9.     }
    11.     public static void main(String[] args) throws InterruptedException {
    12.         TestJoin testJoin = new TestJoin();
    13.         Thread thread = new Thread(testJoin);
    14.         thread.start();
    15.         for (int i = 0; i < 100; i++) {
    16.             if(i==20){
    17.                 thread.join();//插队
    18.             }
    19.             System.out.println("main主方法"+i);
    20.         }
    22.     }
    23. }