笔试面试 以下代码运行时输出结果是什么 public class MyThread extends Thread { public MyThread(){ System.out.println(Thread.currentThread().getName()); } @Override public void run(){ System.out.println(Thread.currentThread().getName()); } } public class MainThread { public static void main(String[] args) { Thread.currentThread().setName("mainThread"); MyThread myThread = new MyThread(); myThread.setName("myThread"); myThread.start(); } }