下列代码执行结果为（A）

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");

        }