Thread.join方法阻塞当前线程

package com.laili;

/**
 * 运行机制：调用join方法的线程对象先执行完成，调用该方法时所在线程将会被阻塞，直到
 * 调用join方法的线程执行完成
 * @author zhouli
 *
 */
public class TestJoin {
	private static MyThread m;
	private static MyThread2 m2;
	public static void main(String[] args) {
		m = new MyThread();
		m2 = new MyThread2();

		m.start();
		m2.start();
		try {
			m2.join();
		} catch (InterruptedException e) { 
			e.printStackTrace();
		}

		System.out.println("MainThread die");
	}

	static class MyThread extends Thread {
		@Override
		public void run() {
			try {
				m2.join();
			} catch (InterruptedException e) { 
				e.printStackTrace();
			}
			for (int i = 0; i < 1000; i++) {
				System.out.println("kkkkkkkkkk");
			}
		}
	}
	static class MyThread2 extends Thread {
		@Override
		public void run() {

			for (int i = 0; i < 1000; i++) {
				System.out.println("ddddd");
			}
		}
	}
}