JAVA，多线程，优先级疑问

这个代码运行后显示台最上面为什么没有main-->5？能够给我解答一下吗？谢谢了

需要在main线程中进行打印

public static void main(String[] args) {
        Runnable task = () -> System.out.println(Thread.currentThread().getName() + " -- " + Thread.currentThread().getPriority());
        Thread t1 = new Thread(task);
        Thread t2 = new Thread(task);
        System.out.println(Thread.currentThread().getName() + " -- " + Thread.currentThread().getPriority());
        t1.start();
        t2.setPriority(1);
        t2.start();
    }