实现Runnable接口方式创建线程

public class MyRunnable implements Runnable
{
    int a=0;
    public void run(){
        for(a=0;a<10;a++){
          try{Thread.sleep(100);}catch(Exception e){}
          System.out.println(Thread.currentThread().getName()+":"+a);
        }
    }
    public static void main(String[] args) 
    {
        MyRunnable mr=new MyRunnable();
        Thread t1=new Thread(mr);
        Thread t2=new Thread(mr);
        t1.start();
        t2.start();
    }
}