Java守护线程用法实例分析

发布时间:2020-10-24 18:11:23 作者:cakincqm
来源:脚本之家 阅读:120

本文实例讲述了Java守护线程用法。分享给大家供大家参考,具体如下:

一 点睛

针对守护线程,只要有一个用户线程在执行,这个进程就不会结束。

当线程中只剩下守护线程时,JVM会自动退出,反之,如果还有其他任何用户线程存在,JVM都不会退出。

二 代码

public class ThreadDaemon
{
  public static void main( String args[] )
  {
   ThreadTest t = new ThreadTest();
   Thread tt = new Thread( t );
   tt.setDaemon( true ); // 设置后台运行
   tt.start( );
   try
   { // 睡眠1毫秒,避免可能出现的没有输出的现象
     Thread.sleep( 1 );
   }
   catch( InterruptedException e )
   {
     e.printStackTrace();
   }
  }
}
class ThreadTest implements Runnable
{
  public void run()
  {
   for( int i = 0; true; ++i )
   {
     System.out.println( i + " " + Thread.currentThread().getName()
        + " is running." );
   }
  }
}

三 运行

0  Thread-0 is running.
1  Thread-0 is running.
2  Thread-0 is running.
3  Thread-0 is running.
4  Thread-0 is running.
5  Thread-0 is running.
6  Thread-0 is running.
7  Thread-0 is running.
8  Thread-0 is running.
9  Thread-0 is running.
10  Thread-0 is running.
11  Thread-0 is running.
12  Thread-0 is running.
13  Thread-0 is running.
14  Thread-0 is running.
15  Thread-0 is running.
16  Thread-0 is running.
17  Thread-0 is running.
18  Thread-0 is running.
19  Thread-0 is running.
20  Thread-0 is running.
21  Thread-0 is running.
22  Thread-0 is running.
23  Thread-0 is running.
24  Thread-0 is running.
25  Thread-0 is running.
26  Thread-0 is running.
27  Thread-0 is running.
28  Thread-0 is running.

更多java相关内容感兴趣的读者可查看本站专题:《Java进程与线程操作技巧总结》、《Java数据结构与算法教程》、《Java操作DOM节点技巧总结》、《Java文件与目录操作技巧汇总》和《Java缓存操作技巧汇总》

希望本文所述对大家java程序设计有所帮助。

推荐阅读:
  1. java 多线程-守护线程
  2. Java工厂模式定义与用法实例分析

免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。

java 守护线程 ava

上一篇:Vue+webpack项目基础配置教程

下一篇:在IDEA中安装scala、maven、hadoop遇到的问题小结

相关阅读

您好,登录后才能下订单哦!

密码登录
登录注册
其他方式登录
点击 登录注册 即表示同意《亿速云用户服务条款》