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).

文章题目：java代码实现关闭电脑 java关闭当前窗口代码
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