学步园

public static void main(String[] args) {
		final CountDownLatch countDown = new CountDownLatch(1);  
    	for(int i=0;i<10;i++){
    		Thread thread=new Thread(new Runnable(){
				public void run() {
					try {
						countDown.await();
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
					System.out.println(Thread.currentThread().getName());
				}
    		});
    		thread.setName("thread "+i);
    		thread.start();
    	}
    	System.out.println("balabala");
    	countDown.countDown();
	}

结果应该是先输出balabala，然后再线程0-9随机输出