Making batch files to execute java programs in windows

In my comp sci class, i found a folder with a batch file, an application file, and all class files necessary to run the program.
how do i take my java program and make a batch file to run it (in dos) like that program in my comp sci class?

Okay, here are your steps for running a java program from a batch file:
1) Open Notepad
2) type the following:
set JAVA_HOME=C:\j2sdk1.4.0_03 // specify the path where your jdk is
set path=%JAVA_HOME%\bin;.
javac {-classpath .;one.jar;two.jar} YourProgramName.java
java {-classpath .;one.jar;two.jar} YourProgramName
The stuffs inside {} is not necessary if your program doesnt use any .jar files.
3) Save the notepad as mybatch.bat in the directory where your Java program is located.
4) In the DOS prompt, go to the directory where you have .java and .bat files
(use 'cd' command)
5) Now, type mybatch.bat and press ENTER.
Thatz it. Your program runs like a charm now!!!
(provided the compiler is pleased with ur code :)
-- layman's pal

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How can I execute a batch file from my java program

Hi,
Can someone help me or direct me to a link,
How can I execute a DOS batch file from my java program?
Thanks

You will need to grab a handle to the process's
outputstream so u can see its output.The OP didn't mention any output from any batch file;
nor any input for that
matter,so lets not complicate matters here for now
ok?Actually I think this is essential to see whether it works or not. It's either that or do some manual check to see whether it ran, which is not exactly elegant, and in some cases this may not be easier than simply writing the output stream code, or in fact it may be impossible to check manually.
I'm sure it wasn't intentional that your post appeared to be bristling with attitude.

How to invoke the .bat(batch file ) from the java program

i want to run some commands when i run one java program.
I wrote those dos commands on the batch file and i want to include the bat file in the java program so that i can execute the bat file when i run the java program.
tell me the way that i can run my bat file inside the java program.

i tried this :
a .bat file named test.bat, with this code : copy test.bat test2.bat
a java class, Test.class, in the same directory
public class Test {
     public static void main(String[] args) {
          try {
               Runtime rt = Runtime.getRuntime();
               Process proc = rt.exec("cmd /c test.bat");
               proc.waitFor();
               int exitVal = proc.exitValue();
               System.out.println("Process exitValue: " + exitVal);
          catch (Throwable t) {
               t.printStackTrace();
}

Batch file to execute java code

Hi,
I need to write a batch file to execute a sequence of java applications.
The problem i face is in addition to the usual libraries I am also using certain jar files i downloaded like the mail interface etc.
When i just compile a java code using a simple batch file giving the path of the compiler and the java code, it fails citing not knowing the location if the packages.
could anyone please let me know what i need to do. Is there like a skeleton that i might find somewhere for this operation

dexterity wrote:
Hi,
I need to write a batch file to execute a sequence of java applications.
The problem i face is in addition to the usual libraries I am also using certain jar files i downloaded like the mail interface etc.
When i just compile a java code using a simple batch file giving the path of the compiler and the java code, it fails citing not knowing the location if the packages.
could anyone please let me know what i need to do. Is there like a skeleton that i might find somewhere for this operationSet the classpath correctly at runtime.
Why do you need the location of your compiler? Are you compiling or running? If you are compiling go look at Ant.

How to create a batch file for a java program?

I have a java project in JCreator and the project is organised into packages. I have also configured JCreator to provide 2 arguments to the main method when the project is executed.
I would want to create a batch file (.bat) for this project where the batch file can automatically use the arguments set in JCreator when the program runs.
How do I go about creating the batch file?

where the batch file can automatically use the arguments set in JCreatorThat all depends JCreator... can you get those arguments somehow?

Batch File to run Java Program

I'm trying to create a batch file that will run a java program without opening it up, compiling, and executing:
JAVA.EXE "C:\(path).class"
It keeps giving me the error message:
Exception in thread "main" java.lang.NoClassDefFoundError: C:\\(path)/class

allright... i switched up the batch file to the format
you gave me. It seems better, but now it has a problem
with TerminalIO.KeyboardReader. The error message was:
Exception in thread "main"
java.lang.NoClassDefFoundError:
TerminalIO/KeyboardReader
at util.<clinit>(util.java:18)
at GPA_Calculator.<clinit>(GPA_Calculator.java:3)
util line 18 is:
private static KeyboardReader input = new
KeyboardReader ();Sounds like you've got alot of non-standard classes there ... I could not begin to speculate. Is this something you wrote or inherited? If it is not too large you could try posting the code ... but it sounds like that would not be practicle. At any rate I can't see how it's working better if it is still not working :S

Windows task scheduler to run batch file running a java program

I have created a batch file that runs my SendEmail program. The batch file is in the same directory as the java program. The only line in the batch file is
java SendEmail
This works fine from the command prompt but from the windows task scheduler it fails to function. Any help on how I can overcome this problem will be greatly appreciated.
THanks

Looks okay. The classpath is set, too, I guess? Btw, try running javaw instead of java. I may err, but I think it can show a console, so you can watch any error messages.

Running Batch file thru a java program

hai friends
i have a batch file like hello.bat
how can i run that batch file when i run my java program
i heard that Runtime.exec() is used to run the batch files.
can i use Runtime.exec() to run my hello.bat file or any other things i need to use ?
Thankyou VeryMuch
Yours
Rajesh

Yes, you can use Runtime. You should look it up in your API guide, but this code might get your started:
        try
            Process p = runtime.exec("command.com /c c:\\hello.bat");
        catch(IOException e)
            System.out.println("Failed");
        }Your API guide will explain how to get a Runtime object. The syntax is very straightforward.

Making batch file to execute a procedure

Hi,
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conn scott/tiger@orcl
exec procedure1
exit from oracle
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Thanks in Advance

Create the batch file as follows:
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Execute Java Program in a specific time everyday

Hi All,
I need help for Execute Java Program in a specific time everyday.
I want to do insert data into database every 3:00 AM everyday.
I thought there is a one thread program will do. It is correct my understanding? Please let me know and guide me How can I do?
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Amit

If you are using Window$ then you can create a bat file to execute the program and place the bat file in Scheduled Tasks.

How to read an XML file into a java program?

hi,
i want to load the following very simple xml file in my java program.
<root>
<weblogic>
<url value="t3://192.168.1.160:7001" />
<context value="weblogic.jndi.WLInitialContextFactory" />
</weblogic>
</root>
I am getting the error: " Line=1: cvc-elt.1: Cannot find the declaration of element 'root'."
What might be the problem can anyone help me out.
My java class code is:
public class BIXMLReader {
/** All output will use this encoding */
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// Parses an XML file and returns a DOM document.
// If validating is true, the contents is validated against the DTD
// specified in the file.
public static Document parseXmlFile(String filename, boolean validating) {
try {
// Create a builder factory
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
factory.setIgnoringComments(false);
factory.setIgnoringElementContentWhitespace(false);
factory.setCoalescing(false);
factory.setValidating(validating);
// Create the builder and parse the file
System.out.println("filename = " + filename);
DocumentBuilder db = factory.newDocumentBuilder();
// Set an ErrorHandler before parsing
OutputStreamWriter errorWriter = new OutputStreamWriter(System.err, outputEncoding);
db.setErrorHandler(new MyErrorHandler(new PrintWriter(errorWriter, true)));
Document doc = db.parse(new File(filename));
System.out.println(doc.toString());
return doc;
} catch (SAXException e) {
System.out.println("A parsing error occurred; the xml input is not valid. " + e.getMessage());
} catch (ParserConfigurationException e) {
System.out.println("Parser configuration exception has occured");
} catch (IOException e) {
System.out.println("IO Exception has occured " + e.getMessage());
return null;
// Error handler to report errors and warnings
private static class MyErrorHandler implements ErrorHandler {
/** Error handler output goes here */
private PrintWriter out;
MyErrorHandler(PrintWriter out) {
this.out = out;
* Returns a string describing parse exception details
private String getParseExceptionInfo(SAXParseException spe) {
String systemId = spe.getSystemId();
if (systemId == null) {
systemId = "null";
String info = "URI=" + systemId +
" Line=" + spe.getLineNumber() +
": " + spe.getMessage();
return info;
// The following methods are standard SAX ErrorHandler methods.
// See SAX documentation for more info.
public void warning(SAXParseException spe) throws SAXException {
out.println("Warning: " + getParseExceptionInfo(spe));
public void error(SAXParseException spe) throws SAXException {
String message = "Error: " + getParseExceptionInfo(spe);
throw new SAXException(message);
public void fatalError(SAXParseException spe) throws SAXException {
String message = "Fatal Error: " + getParseExceptionInfo(spe);
throw new SAXException(message);
}

ok thanks, i can get the elements, but why did it not validate it?
I want to read the child nodes of "weblogic" not by their name but by their index. Because i dont want to confine the reader so i want to read all the child nodes of weblogic (looping over them). i m doing the following but its not returning me the correct result and giving me the wrong count of child nodes.
Element elementNode = (Element)doc.getElementsByTagName("weblogic").item(0);
NodeList nodeList = elementNode.getChildNodes();
int length = nodeList.getLength();
System.out.println("length = "+ length); // the length its giving is 5 but i shuld get only 2
for(int i=0; i < length; i++) {
Element elmChild = (Element) nodeList.item(i);
System.out.println(elmChild.getAttribute("value"));
what might be the problem?

How to run an exe file in a java program

Hi,
Can somebody tell me how to run an exe file in a java program.
Thank you!

Yes, java.lang.Runtime.exec().
Read this carefully before you do:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html
Don't write a line of code before you're reviewed and understood the article completely. - MOD

How to create Batch file to execute sql scripts

Hi friends,
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I have all table ( all table scripts in single file ) ,Udds ( all udds in single file ) ,Stored procedures( separate file for each SPs ),Functions ( Separate file for each Functions ),Triggers and views scripts in .SQL file.
can anybody tell me how to create batch file for executing all these scripts in sql server ?.
   while executing, it should ask Database name,server name, password. if these details are given then it should execute my all scripts in given database
, if any error thrown then that error and procedure name alone have to move to separate log file..
Please help me if this possible or any other easy way to do this..
Thanks - Ravi

Hi Mate.
can i save the below details in my batch file parmantly, so that i don't need to provide the details agains again in CMD while i execute this. Please help
set /p SName=Server Name :
set /p UName=User Name :
set /p Pwd=Password :
set /p DbName=Database Name
If i am providing the details before execution of this bat file it will throw error.

How to execute java programs in xcode

I cannot execute Java program in XCode for Mountain Lion 10.8.2. Please help me how to execute a Java program.

Do you have a particular error or message or diagnostic or issue, or something that's particularly wrong with Xcode? If installed, Java does work, and Java applications can be invoked.
Background: Java was deprecated from OS X a while back, and Java itself was removed from the default OS X 10.8 installation.
Given that Java is now an add-on for OS X, you'll want to check with Oracle — the owner of Java — for OS X kits and tools.
I don't know off-hand if Xcode still particularly supports Java (it was pretty weak, when last I checked), but I'd expect you'll be using makefiles for the work, and I'd also suspect that whatever Java support remains in Xcode will probably be going away in some future version of Xcode. (If support hasn't already disappeared. You may be using bash build scripts and makefiles to deal with Java now, or going forward.)
If you don't have access to the Apple developer forums and the discussions of tools available there, then the archives of the Apple Java-Dev mailing list can be a good spot to look for existing discussions, and to post questions related to Java development on OS X.
As for IDEs other than Xcode, Eclipse or NetBeans or IntelliJ IDEA, and BlueJ all run on OS X, and any of these would probably be a better long-term choices for Java development on OS X.

How to compile and run a .java file from another java program

hello,
can any one tell me how to compile and run a *.java* file from another java program which is not in same directory?

Well a smarter way of implementing this is by using a solution provided by Java Itself.
If you are using J2SE 6.0+ there is an in built solution provided along with JDK itself and inorder to go ahead with solution the below are set of API which you;d be using it for compiling Java Programs (Files)
http://java.sun.com/javase/6/docs/api/javax/tools/package-summary.html
How do i do that ??
Check out the below articles which would help you of how to do that
http://www.ibm.com/developerworks/java/library/j-jcomp/index.html
http://www.javabeat.net/javabeat/java6/articles/java_6_0_compiler_api_1.php
http://books.google.com/books?id=WVbpv8SQpkEC&pg=PA155&lpg=PA155&dq=%22javax+tools%22+compiling+java+file&source=web&ots=XOt0siYe-f&sig=HH27ovuwvJgklIf8omTykUmy-eM
Now once we are done with compilation.In order to run a Specific class all you ought to do is create an object and its specific methods of a specified class included in the CLASSPATH which you can manage it easily by usage little bit reflections.
Hope that might help :)
REGARDS,
RaHuL

Making batch files to execute java programs in windows

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