线程优先级

1. NORM_PRIORITY=5

2. MAX_PRIORITY=10

3. MIN_PRIORITY=1

package com.kaka.thread;

public class TestPriority implements Runnable{

    public static void main(String[] args) {

        //主线程main默认优先级为5
        System.out.println(Thread.currentThread().getName()+"--->"+Thread.currentThread().getPriority());

        TestPriority testPriority=new TestPriority();
        Thread t1=new Thread(testPriority,"t1");
        Thread t2=new Thread(testPriority,"t2");
        Thread t3=new Thread(testPriority,"t3");
        Thread t4=new Thread(testPriority,"t4");
        Thread t5=new Thread(testPriority,"t5");

        //先设置优先级再启动
        t1.start();//默认优先级是5

        t2.setPriority(1);
        t2.start();

        t5.setPriority(Thread.MAX_PRIORITY);//最大优先级为10
        t5.start();

        t3.setPriority(3);
        t3.start();

        t4.setPriority(8);
        t4.start();

    }

    @Override
    public void run() {

        System.out.println(Thread.currentThread().getName()+"--->"+Thread.currentThread().getPriority());
    }
}

结果：