JAVA多线程join方法入门详解

package com.yys.thread;

/**
* Created by yys on 2017/9/20.
* 测试 Thread join方法
* join 方法为合并线程
* 如果不加入join方法便是两个独立线程 (main线程,和MyThread2线程)
* join 方法将两个线程合并 此处将MyThread2合并到main线程中 合并后t1.start()执行完成后执行main()方法中for循环
* 输出为
i am abcde
i am abcde
i am abcde
i am abcde
i am abcde
i am abcde
i am abcde
i am abcde
i am abcde
i am abcde
i am abcde
i am main thread
i am main thread
i am main thread
i am main thread
i am main thread
i am main thread
i am main thread
i am main thread
i am main thread
i am main thread
i am main thread
*
*/
public class TestJoin {
public static void main(String args[]){
MyThread2 t1 = new MyThread2("abcde");
t1.start();

try {
t1.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
for(int i=0;i<=10;i++){
System.out.println("i am main thread");
}
}
}
class MyThread2 extends Thread{
MyThread2(String name){

4000
super(name);
}
public void run(){
for(int i=0;i<=10;i++){
System.out.println("i am " + getName());
try {
sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}