Thread Jolin解析

public class TestJoin {

	/**
	 * @param args
	 */
	public static void main(String[] args) 
	{
		// TODO Auto-generated method stub
		Thread  t1=new Thread(){public void run(){System.out.println("t1 is running");thread2();}};
		t1.start();
		try 
		{
			t1.join();
		} catch (InterruptedException e) 
		{
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println("t1 is over");

	}
	public static void thread2()
	{
		Thread t2=new Thread(){public void run(){System.out.println("t2 is running");}};
		try 
		{
			t2.start();
			t2.join();
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println("t2 is over");
		
	}
	

}

join就是等待此线程执行完毕后！也就是 t2.start()运行完成后 继续执行！！