public class test{/*** 测试延迟继承* @param args*/public static void main(String[] args) {Cat cat=new Cat();cat.start();//启动线程，会导致run函数的运行Dog dog=new Dog();//创建一个线程对象Thread t=new Thread(dog);t.start();}}
//继承Thread创建线程
class Cat extends Thread 
{public void run(){int i=1;while(i<=10){try {Thread.sleep(500);//休眠一秒,会使线程进入Blocked状态，并释放资源} catch (InterruptedException e) {e.printStackTrace();}System.out.println("Hello Thread"+i);i++;}}
}
//使用接口Runnable创建线程
class Dog implements Runnable
{public void run() {int i=1;while(true){try {Thread.sleep(1000);}catch (InterruptedException e) {e.printStackTrace();}System.out.println("I am the Thread"+i);i++;if(i>10){break;}}}}