Java executes the method of Windows cmd command _java

This article illustrates the Java method for executing the cmd command under Windows. Share to everyone for your reference.

The specific implementation code is as follows:

Copy Code code as follows:

Get run time
Runtime RT = Runtime.getruntime ();
Get process
Process P = rt.exec (string[] cmdarray);//or process P = rt.exec (String cmd);
If p is not empty, then empty
if (null!=p) {destory
P.destory ();
P=null;
}

For example:

Copy Code code as follows:

Runtime RT = Runtime.getruntime ();
Process p = rt.exec ("cmd.exe/c shutdown-a");
System.out.println (P.tostring ());

cmd/c dir closes the command window after the dir command has been executed.

cmd/k dir does not close the command window until the dir command is executed.

cmd/c start dir opens a new window and executes the dir instruction, and the original window closes.

cmd/k start dir opens a new window and executes the dir instruction, and the original window does not close.

can use cmd/? To view help information.

Add:

★CMD Command ★
1. Gpedit.msc-----Group Policy
2. Sndrec32-------Recorder
3. Nslookup-------IP Address detector
4. Explorer-------Open Explorer
5. Logoff---------Cancellation Order
6. Tsshutdn-------60-second Countdown shutdown command
7. Lusrmgr.msc----native Users and Groups
8. Services.msc---Local Service settings
9. oobe/msoobe/a----Check to see if XP is active
Notepad--------Open the Notebook
cleanmgr-------Garbage collection.
A. Net start messenger----begin the Messenger service
Compmgmt.msc---Computer Management
net stop Messenger-----stopping messenger Service
Conf-----------start NetMeeting
Dvdplay--------DVD Player
Charmap--------Start character mapping table
Diskmgmt.msc---Disk Management utility
Calc-----------Start Calculator
Dfrg.msc-------Disk Defragmenter
Chkdsk.exe-----CHKDSK disk Check
Devmgmt.msc---Device Manager
regsvr32/u *.dll----Stop DLL file from running
DRWTSN32------System Doctor
Rononce-p----15-second shutdown
DxDiag---------Review DirectX Information
Regedt32-------Registry Editor
Msconfig.exe---System Configuration Utility
Rsop.msc-------Group Policy result set
Mem.exe--------Show Memory usage
Regedit.exe----Registration Form
Winchat--------XP with LAN Chat
ProgMan--------Program Manager
WINMSD---------System Information
PERFMON.MSC----Computer Performance monitoring Program
Winver---------Check the Windows version
Sfc/scannow-----Scan Error and recover
Taskmgr-----Task Manager (2000/xp/2003
Winver---------Check the Windows version
Wmimgmt.msc----Open Windows Management Architecture (WMI)
Wupdmgr--------Windows Update
wscript--------Windows Script Host Settings
Write----------WordPad
WINMSD---------System Information
Wiaacmgr-------Scanner and Camera Wizard
Winchat--------XP with LAN Chat
Mem.exe--------Display Memory usage
Msconfig.exe---System Configuration Utility
Mplayer2-------Simple widnows Media Player
MSPaint--------Drawing Board
MSTSC----------Remote Desktop Connection
Mplayer2-------Media Player
Magnify--------Magnifier Utility
MMC------------Open the console
Mobsync--------Sync Command
DxDiag---------Check DirectX information
DRWTSN32------System Doctor
Devmgmt.msc---Device Manager
Dfrg.msc-------Disk Defragmenter
Diskmgmt.msc---Disk Management utility
DCOMCNFG-------Open System Component Services
DdeShare-------open DDE Share settings
Dvdplay--------DVD Player
The. net stop Messenger-----Stop messenger Service
Start Messenger Service with the. Net start Messenger----
Notepad--------Open
nslookup-------Network Management Tools Wizard
ntbackup-------system backup and restore
Narrator-------Screen "narrator"
Ntmsmgr.msc----Mobile Storage Manager
Ntmsoprq.msc---Mobile Storage Administrator action Request
Netstat-an----(TC) command Check interface
Syncapp--------Create a Briefcase
Sysedit--------System Configuration Editor
Sigverif-------File Signature Verification program
Sndrec32-------Recorder.
SHRPUBW--------Create a shared folder
Secpol.msc-----Local Security Policy
SYSKEY---------System encryption, once encrypted can not be undone, protect the Windows XP system dual Password
Services.msc---Local Service settings
BA Sndvol32-------Volume Control program
Sfc.exe--------System File Checker
Sfc/scannow---Windows File Protection
TSSHUTDN-------60-second Countdown shutdown command
Tourstart------XP Introduction (roaming XP programs that appear after installation is complete)
Taskmgr--------Task Manager
EVENTVWR-------Event Viewer
Eudcedit-------Word-formation program
-------Explorer Opens
Packager-------Object Wrapping procedure
PERFMON.MSC----Computer Performance monitoring Program
ProgMan--------Program Manager
Regedit.exe----Registration Form
Rsop.msc-------Group Policy result set
Regedt32-------Registry Editor
Rononce-p----15 seconds off.
regsvr32/u *.dll----Stop DLL file from running
regsvr32/u zipfldr.dll------Cancel Zip support
Cmd.exe--------cmd command prompt
Chkdsk.exe-----CHKDSK disk Check
Certmgr.msc----Certificate Management Utility
102. Calc-----------Start Calculator
Charmap--------Start character mapping table
CLICONFG-------SQL SERVER Client Network Utility
CLIPBRD--------Clipboard Viewer
A. conf-----------start NetMeeting
Compmgmt.msc---Computer Management
108. cleanmgr-------Garbage Collection
109. Ciadv.msc------Indexing Service Program
Osk------------turn on on-screen keyboard
ODBCAD32-------ODBC data Source Manager
112. oobe/msoobe/a----Check to see if XP is active
113. Lusrmgr.msc----native Users and Groups
114. Logoff---------Logoff command
IExpress-------Trojan Bundle tools, the system with its own
116. Nslookup-------IP Address Detectors
117. Fsmgmt.msc-----shared Folder Manager
118. Utilman--------Utility Manager
119. Gpedit.msc-----Group Policy
Explorer-------Open Resource Manager
Javac actually executed just no output execution result because you don't have the part that outputs the execution result
If you execute

Copy Code code as follows:

Runtime.getRuntime.exec ("cmd");

I can't see the results.
Because it does not execute in the Java program but on the operating system.
You can do this.

Copy Code code as follows:

Runtime.getRuntime.exec ("cmd/c start Javac");

You can see a command line window.

I hope this article will help you with your Java programming.