创建线程的方式

第一种方式：

class A extends Thread{public void run(){while (true)System.out.printf("AAAA\n");}}public class testThread {public static void main(String[] args){A aa = new A();aa.start();while (true)System.out.printf("BBBB\n");}}

第二种方法：

class A implements Runnable{public void run(){while (true)System.out.printf("AAAA\n");}}public class testThread {public static void main(String[] args){A aa = new A();//aa.start();Thread t = new Thread(aa);t.start();while (true)System.out.printf("BBBB\n");}}