java语言的自动关机的代码

public class RuntimeTest {

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public static void main(String[] args)

{

Runtime rt=Runtime.getRuntime();

try

{

rt.exec("shutdown.exe -s -t 40");

/*40的单位为秒，可以改成你想要的任何数字。

如果是想定时关机，可用这句：rt.exec("at 19：00 shutdown.exe -s");19：00可以换成你想要的时间*/

}

catch(Exception e)

{

e.printStackTrace();

}

}

}

如何用java代码打开关闭程序？

楼主，可以这样，可以使用tasklist.exe得到线程的PID，然后使用命令行taskkill.exe处理

java中关闭当前窗口用什么代码

setDefaultCloseOperation(JFrame.EXIT_ON_CLOES)会让整个程序都退出

JFrame.DISPOSE_ON_CLOSE只让当前的窗口关闭而已

java怎么实现远程关闭计算机，远程唤醒的做好了，远程关机的不知道该怎么做

有管理员权限吧，那用shutdown命令就可以了

shutdown -m \\192.168.0.10 -f -s -t 0

shutdown /? 看看帮助信息。

C:\Windows\system32shutdown /?

Usage: shutdown [/i | /l | /s | /r | /g | /a | /p | /h | /e] [/f]

[/m \\computer][/t xxx][/d [p|u:]xx:yy [/c "comment"]]

No args Display help. This is the same as typing /?.

/? Display help. This is the same as not typing any options.

/i Display the graphical user interface (GUI).

This must be the first option.

/l Log off. This cannot be used with /m or /d options.

/s Shutdown the computer.

/r Shutdown and restart the computer.

/g Shutdown and restart the computer. After the system is

rebooted, restart any registered applications.

/a Abort a system shutdown.

This can only be used during the time-out period.

/p Turn off the local computer with no time-out or warning.

Can be used with /d and /f options.

/h Hibernate the local computer.

Can be used with the /f option.

/e Document the reason for an unexpected shutdown of a computer.

/m \\computer Specify the target computer.

/t xxx Set the time-out period before shutdown to xxx seconds.

The valid range is 0-315360000 (10 years), with a default of 30.

If the timeout period is greater than 0, the /f parameter is

implied.

/c "comment" Comment on the reason for the restart or shutdown.

Maximum of 512 characters allowed.

/f Force running applications to close without forewarning users.

The /f parameter is implied when a value greater than 0 is

specified for the /t parameter.

/d [p|u:]xx:yy Provide the reason for the restart or shutdown.

p indicates that the restart or shutdown is planned.

u indicates that the reason is user defined.

If neither p nor u is specified the restart or shutdown is

unplanned.

xx is the major reason number (positive integer less than 256).

yy is the minor reason number (positive integer less than 65536).

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