Java多线程(三)

四.线程优先级

java提供一个线程调度器监控程序中启动后进入就绪状态的所有线程，调度器按照优先级决定线程执行顺序。(优先级只表示获得调度的概率，并不是优先级低的不被调用，最终还是取决于CPU的调度)

     优先级用数字表示，1~10，默认为5。

• Thread.MIN_PRIORITY = 1
• Thread.MAX_PRIORITY = 10
• Thread.NORM_PRIORITY = 5

     通过get.Priority()，setPriority()获取和设置优先级。

public class Priority implements Runnable{
    @Override
    public void run() {
        System.out.println(Thread.currentThread().getName()+"-->"+Thread.currentThread().getPriority());
    }

    public static void main(String[] args) {
        System.out.println(Thread.currentThread().getName()+"-->"+Thread.currentThread().getPriority());
        Priority p = new Priority();
        Thread a = new Thread(p);
        Thread b = new Thread(p);
        Thread c = new Thread(p);
        Thread d = new Thread(p);
        Thread e = new Thread(p);
        Thread f = new Thread(p);

        a.setPriority(Thread.MIN_PRIORITY);
        a.start();

        b.setPriority(7);
        b.start();

        c.setPriority(Thread.MAX_PRIORITY);
        c.start();

        d.setPriority(2);
        d.start();

        e.setPriority(Thread.NORM_PRIORITY);
        e.start();

        f.setPriority(9);
        f.start();
    }
}

main-->5
Thread-2-->10
Thread-5-->9
Thread-1-->7
Thread-4-->5
Thread-3-->2
Thread-0-->1

标签：Java,Thread,--,PRIORITY,start,setPriority,new,多线程
来源： https://www.cnblogs.com/tao-gak567/p/15361737.html