join
join合并线程,待此线程执行完成后,在执行其他线程,其他线程阻塞
可以想象成插队
package com.lei;
//测试join方法--想象为插队
public class TestJoin implements Runnable {
@Override
public void run() {
for (int i = 0; i < 100; i++) {
System.out.println("线程vip来了"+i);
}
}
public static void main(String[] args) {
TestJoin testJoin = new TestJoin();
Thread thread = new Thread(testJoin);
thread.start();
//主线程
for (int i = 0; i < 1000; i++) {
if(i==200){
try {
thread.join();//插队
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println("主方法"+i);
}
}
}