Thread-related Topics in Java

1, look at the following program error occurred in which line! Class Test implements Runnable{public void Run (Thread t) {}}2, what is the output? Class test{public   static void Main (string[] args) {new Thread (new Runnable () {public void run () {System.out.println (" Runclass run! ");}) {public void Run () {System.out.println ("subclass run!");}}. Start ();   }} 3. What is the output? Class test{public   static void Main (string[] args) {new Thread (new Runnable () {public void run () {System.out.println (" Runclass run! ");}) {}.start ();   }} A.  Produceconsumedemo.java:1: Error: Test is not abstract and does not overwrite abstract method in Runnable run ()  class Test implements runnable{  ^  1 An error two. Subclass run! three. Runclass run! (second, three questions, how to say, Anonymous inner class gets the object of its subclass!) If the subclass overrides the method of the parent class, then the subclass must be called! Otherwise, the method of using the parent class is lost! )