public class Machine implements Runnable{
    static StringBuffer log = new StringBuffer();
    public void run() {
        // TODO Auto-generated method stub
        int count =0;
        for(int i=0;i<20;i++){
            log.append("m"+i);
            if(++count%10==0){log.append("\n");}
        }
    }
}

public class Test implements Runnable{
    static StringBuffer log = new StringBuffer();
    public void run() {
        // TODO Auto-generated method stub
        int count =0;
        for(int i=0;i<20;i++){
            log.append(Thread.currentThread().getName()+":m"+i);
            if(++count%10==0){log.append("\n");}
        }
    }
    
    public static void main(String[] args) throws InterruptedException {
        Machine machine1 = new Machine();
        Machine machine2 = new Machine();
        Thread t1 = new Thread(machine1);
        Thread t2 = new Thread(machine2);
        t1.setName("t1");
        t2.setName("t2");
        Thread main = Thread.currentThread();
        main.setPriority(3);
        System.out.println("主线程的优先级是"+main.getPriority());
        System.out.println("线程t1的优先级是"+t1.getPriority());
        System.out.println("线程t2的优先级是"+t2.getPriority());
        t1.setPriority(Thread.MIN_PRIORITY);
        t2.setPriority(Thread.MAX_PRIORITY);
        t1.start();
        t2.start();
        Thread.sleep(500);
        System.out.println(log);
    }
}