1.10.3优先级具有随机性

 1 package com.cky.prioritydemo;
 2 
 3 /**
 4  * Created by edison on 2017/12/3.
 5  */
 6 public class PriorityTest {
 7     public static void main(String[] args) {
 8         for (int i = 0; i < 5; i++) {
 9             MyThread1 th1 = new MyThread1();
10             th1.setPriority(5);
11             th1.start();
12             MyThread2 th2 = new MyThread2();
13             th2.setPriority(6);
14             th2.start();
15         }
16     }
17 }

C:\itsoft\jdk\bin\java -Didea.launcher.port=7539 "-Didea.launcher.bin.path=C:\itsoft\idea\IntelliJ IDEA 2016.3.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\itsoft\jdk\jre\lib\charsets.jar;C:\itsoft\jdk\jre\lib\deploy.jar;C:\itsoft\jdk\jre\lib\ext\access-bridge-32.jar;C:\itsoft\jdk\jre\lib\ext\cldrdata.jar;C:\itsoft\jdk\jre\lib\ext\dnsns.jar;C:\itsoft\jdk\jre\lib\ext\jaccess.jar;C:\itsoft\jdk\jre\lib\ext\jfxrt.jar;C:\itsoft\jdk\jre\lib\ext\localedata.jar;C:\itsoft\jdk\jre\lib\ext\nashorn.jar;C:\itsoft\jdk\jre\lib\ext\sunec.jar;C:\itsoft\jdk\jre\lib\ext\sunjce_provider.jar;C:\itsoft\jdk\jre\lib\ext\sunmscapi.jar;C:\itsoft\jdk\jre\lib\ext\sunpkcs11.jar;C:\itsoft\jdk\jre\lib\ext\zipfs.jar;C:\itsoft\jdk\jre\lib\javaws.jar;C:\itsoft\jdk\jre\lib\jce.jar;C:\itsoft\jdk\jre\lib\jfr.jar;C:\itsoft\jdk\jre\lib\jfxswt.jar;C:\itsoft\jdk\jre\lib\jsse.jar;C:\itsoft\jdk\jre\lib\management-agent.jar;C:\itsoft\jdk\jre\lib\plugin.jar;C:\itsoft\jdk\jre\lib\resources.jar;C:\itsoft\jdk\jre\lib\rt.jar;C:\多线程核心技术\第一章\out\production\第一章;C:\itsoft\idea\IntelliJ IDEA 2016.3.3\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain com.cky.prioritydemo.PriorityTest
thread 1 use time=516
thread 1 use time=531
thread 2 use time=547
thread 2 use time=578
thread 1 use time=578
thread 1 use time=578
thread 2 use time=594
thread 1 use time=594
thread 2 use time=594
thread 2 use time=594

Process finished with exit code 0