public class setPriority{ 
    public static void main(String args[]){ 
        MyThread3 t1 = new MyThread3("t1"); 
        MyThread3 t2 = new MyThread3("t2"); 
        t1.start(); 
        t2.start(); 
        
        Thread t3 = new Thread(new MyThread4());//以MyThread4类的实例作为参数
        t3.start();
    } 
} 

class MyThread3 extends Thread{ 
    MyThread3(String s){
        super(s);
    } 

    public void run(){ 
        for (int i=1;i <100;i++){ 
            System.out.println(getName()+":"+i); 
            if(i%10==0){ 
                yield(); 
            } 
        } 
    } 
}

class MyThread4 implements Runnable{ //实现Runnable接口
    public void run(){
        //some codes        
    }
}