下列代码执行结果为

public static void main(String args[])throws InterruptedException{
    Thread t=new Thread(new Runnable() {
        public void run() {
            try {
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                throw new RuntimeException(e);
            }
            System.out.print("2");
        }
    });
    t.start();
    t.join();
    System.out.print("1");
}