多线程1

package lianxi1;

class SubThread extends Thread{
    public void run(){
    for(int i=1;i<=50;i++){
        try {
            Thread.currentThread().sleep(1000);  //使当前线程暂停，不丢失控制权
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        System.out.println(Thread.currentThread().getName()+" "+Thread.currentThread().getPriority()+" "+i);
    }
    }
}
public class TestThread {

    public static void main(String[] args) {
        SubThread sub = new SubThread();
        sub.setPriority(Thread.MIN_PRIORITY);
        sub.start();
        for(int i=1;i<=50;i++){
            System.out.println(Thread.currentThread().getName()+" "+Thread.currentThread().getPriority()+" "+i);
//            if(i%5==0){
//                Thread.currentThread().yield();  // yield方法暂停当前执行的线程，转到其他线程
//            }
            if(i%10==0){
                try {
                    sub.join();  //等待该线程终止
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
        System.out.println(sub.isAlive());

    }

}