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Java I/O Q&A
2.batch File
3.binary File
4.class file
5.CSV file
10.Excel File
11.File Attribute
14.Media File
17.PDF file
20.text file
22.XML file
Java I/O Q&A » Operation » command 

1. how to give wait & close the command prompt in java

I am using the following code to execute a batch file:

java.lang.Runtime rt = java.lang.Runtime.getRuntime();
Process pr = rt.exec("MyBatch.bat");
My batch file takes some time to execute. I want my servlet process to wait ...

2. Simulate touch command with Java

I want to change modification timestamp of a binary file. What is the best way for doing this? Would opening and closing the file be a good option? (I require a solution ...

3. Is there a java library equivalent to file command in unix

Is there any java library that is similar to unix's command file? ie:

$ file somepicture.png
somepicture.png PNG image, 805 x 292, 8-bit/color RGB, non-interlaced
The file command is such a nice tool. I ...

4. Java getDesktop() open command

I am trying to use Java's Desktop / getDesktop() / open() call to open a text (simple ASCII) file with the system's default editor. I am using FileWriter / PrintWriter ...

5. In java what are the packages containing operating system level commands?

I want to to detect whether a given program can perform malicious operations like forking , interprocess piping , input/output redirection, file handling etc. Actually I am developing a program that checks ...

6. Execute external command and read stderr/stdout from Jython 2.1

I'm executing an external command from Jython 2.1 by calling os.system(). This works, but I can't get to any error messages the external program is writing. Jython 2.1 is too old ...

7. execute file .lnk in Java

i need to execute a .lnk file in java (lnk file that points at an exe file). how can i do? in vb .net i do

and it works thx you for help. ...

8. java operation on Files - or cmd commands

i need to perform some operations on files - rename, delete and etc. what is better? use cmd commands or use methods? thanks.

9. changing the working-directory of command from java

I need to execute a .exe file from a function in one of the packages I have in my java project. now the working directory is the root directory of the ...

10. writing to a file using java and command prompt

when I run this command ffmpeg -i "C:\user\test.wmv" >C:\user\test.wmv_info.txt 2>&1 from command prompt it works but when I try to the same from java file by calling the command prompt it ...

11. How can i open any file using voice command.

Nepomuk re: How can i open any file using voice command. Hi there! Voice recognition is an extremely complex field and years of effort and millions of dollars, euros and many ...

12. System commands

13. System commands

14. java program run external command on Unix

Hi. How to exit from this java program which run on Unix. Help appreciate. Pierre here the complete code import*; public class RunCommand { public static void main(String args[]) { String s = null; try { // run the Unix "ps -ef" command Process p = Runtime.getRuntime().exec("ps -ef"); BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream())); //BufferedReader stdError = new BufferedReader(new // ...

15. can't run commands from application

Hi All, I am customizing iPlanet's BillerXpert and within the packaged code is a call to Runtime.exec() to run a conversion program. When the code runs I get a ' Not enough space' message, but when I println the command, copy it from the log, and run it at the command line it works. Here is the code: Runtime run = ...

16. Java Commands

17. command execution

18. java command - argument question

java classname [arg1] [arg2] ... where argX contains non-english characters i am now trying to run java command with non-english characters as arguments. the args[] array i get from main() cannot show those characters (it just shows "???"). how can i change the charset of to utf8 before the program gets into main() so that i can get those characters ...

19. Display UNIX Commands in TextArea

How do you capture UNIX commands that produce only output into a TextArea? Say, I want to display the results of the UNIX "df" or "who" command into the TextArea. I know that I would have to somehow take the results and input it into a Stream, convert the Stream into a String, and display the String in the TextArea. I ...

20. running external commands in java

Hi I want to run external commnad from my program. I have a utility which I use to find differences between two files. Its a console application and can be run from command line by >diff file1 file2 I want to call this from a java program. How can I do this. Thanks Avijit

21. reading from system command

i am using this program to open a unix shell and read the output of the command .. but it prints all the output after the command finishes there a way to print the output line by line as soon it appears not to wait to the whole command to finish thanks in advance

22. detect print command

23. how to execute commands from java

hi, i m trying to execute a CVS command from a java environment. i m writing this code to create a user. for this i m executing this cvs command "cmd /c cvs passwd -r -a " after executing this cmd the command prompt will prompt for a pasword and then after entring the password i have to retype the ...

24. Reading a file through command prompt

Guys, I want to read a file that I give through the command prompt. I want to know how I can avoid blank spaces so that I can get to the file. For example, I have a file located at c:\Documents and settings\User\file.txt. I want to read the file.txt, but when I supply this as command line argument, due to the ...

25. Java Command problem

hi everyone . i am facing a strange problem basically i want to redirect output "JAVA MYCLASS" command to my specific file. Description : Actually i want to redirect the output of "JAVA MYCLASS" command. where the MYCLASS would be the name of the compiled class at specific location. i tried following but got no output import java.util.*; import*; class ...

26. Parse Command file

Hi all, I have a command-file that looks like that: @echo off set DIR=c:\programs\zld\zld_batch_controller set LIB=%DIR%/lib rem ================================ rem classpath rem ================================ set CP=%DIR% set CP=%CP%;%LIB%/zld_batch_controller.jar set CP=%CP%;%LIB%/zld_server_impl.jar set CP=%CP%;%LIB%/zld_server_interface.jar set CP=%CP%;%LIB%/log4j-1.2.9.jar set CP=%CP%;%LIB%/commons-logging.jar set CP=%CP%;%LIB%/commons-cli-1.0.jar set CP=%CP%;%LIB%/spring.jar set CP=%CP%;%LIB%/toplink.jar set CP=%CP%;%LIB%/classes12.jar set CP=%CP%;%LIB%/xstream.jar set CP=%CP%;%LIB%/xalan.jar set CP=%CP%;%LIB%/mx4j.jar set CP=%CP%;%LIB%/mx4j-tools.jar set CP=%CP%;%LIB%/xmlparserv2.jar set CP=%CP%;%LIB%/quartz-1.5.1.jar rem ================================ rem vm options rem ================================ ...

27. Command for running a java file

29. Reg:Executing Commands

Hi, I have developed an application in swings in which a user will schedule a command. So to make it user friendly the user will enter only the command, like the "del d:\exp.txt". I am successful in all other parts of the program but when i try to run the command from java i get the error. The code is below ...

30. Files.copy() command is not working

Hi, Please have a look at the following code import java.nio.file.Files; import java.awt.*; import java.awt.event.*; import javax.swing.*; import*; import static java.nio.file.StandardCopyOption.*; public class FileChooserCheck extends JFrame implements ActionListener { JFileChooser fileChooser; JButton open,save; JTextArea text; String str[]; public FileChooserCheck() { fileChooser = new JFileChooser(); open = new JButton("Open"); save = new JButton("Save"); text = new JTextArea(50,50); open.addActionListener(this); save.addActionListener(this); JPanel panel ...

31. Help file for Java commands?

32. read commands from file and run it

33. Can any please advise me on how to run the java file using command prompt?

I have a java file with the main method in it and need to run the file using ms dos. These are the Enviroment Variables setting I have: CLASSPATH C:\Program Files\Java\j2re1.4.2_12\lib\ext\ QTJAVA C:\Program Files\Java\j2re1.4.2_12\lib\ext\ All my java code is in the D:\project\student folder Can any please advise me on how to run the java file using command prompt? Thanks, Zub

34. how to open a macro in .odt file from command prompt

HI, This is sekhar.I m facing a severe problem mentioned below. i have some macros in my ooDoc_w_makro.odt file.i have to start a particular macro from command promt . i have tried the following thing. C: Program Files 2.0\\program soffice.bin C:\\Test\\Makro ooDoc_w_makro.odt -invisible -headless -nofirststartwizard \"macro:///AnswerMsg()\""; AnswerMsg is my macro name to be started. but it is not opening the ...

35. How to open files using cmd command?

37. How to make input redirection to a file in Java exec() command??

I am trying to build an online java compiler. I want to make an input redirection to a file. I try instead of reading values from the keyboard to read them from a file. When i use the

38. How to sort files lile unix sort command

Hi, I am trying to sort files (about 2 to 10 files, each will have about 2000 lines ) in java. I started initially by loading file contents to an array and sort that, to display in JTextArea, but when i select more then 2 files, i get Heap Space (Memory not available) because of loading everything to array. Can some ...  | Contact Us | Privacy Policy
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