How to set classpath from java class ??

I have tried to use System.setProperty("java.class.path", "my class path string ") to set classpath dynamically. But it is not working. How to set it dynamically from java class ?? Thanks , gary

Look into the java.net.URLClassLoader. You can't set the classpath after the fact but you can specify URL's that will checked when you try to load a class with that loader.

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How to set classpath from java application

in my ian using Runtine.exec();
here the code
String cmd[]={"cmd.exe","/c","path=C:\\j2sdk1.4.2_03\\bin\\;"};
          Runtime runtime = Runtime.getRuntime();
          Process setPathProc = runtime.exec(cmd);
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it working when ian running the application class from command, but when iam creating a jar file and running it was not working,,
any suggestion

hi kaj,
my problem is ,
In my application i have to compile one java file and
create class file for that java file, here before
creating i have to set class path, am i right?
so in my program only first i have to set class path,
and later i have to compile, so, in my code i have
mentioned the details about to set class path and
compile the program, r u getting what iam telling,
please help me, if u know anything,
thanks

Set classpath from java code

Hi,
Is it possible to set new classpath from java code? Something like System.setClasspath(String);
Many thanks
Miso

You aren't the first one to wonder whether that would work, so don't call yourself stupid on that account.
Not taking 15 minutes to set up and run a test to actually see if it works... well, if you really needed the answer, that would be different.

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Edited by: okun on May 16, 2010 8:40 PM
Edited by: okun on May 16, 2010 8:41 PM
Edited by: okun on May 16, 2010 8:47 PM

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To answer your impending question, either the method you're calling has to be static, or you need an instance of that other class to invoke it against. Prefer the latterAnd to your impending question after that: no, don't use the Singleton pattern.

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I am using jdev 11.1.1.7.0
I have used the below code which works fine in jdev 2.1 but it will have some errors in 11.1.1.7.0.
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Hari,
Since you're using a non-public build of JDeveloper, you should be using a non-public forum.
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How to debug noclassdeferror from java stored procedure.

Hi,
I am making use of OracleSoapHttpConnection class to call a webservice from a java stored procedure. I used loadjava to load the soap.jar, everything loaded without any error. We can see the "OracleSoapHTTPConnection" class loaded in the all_objects table, still during runtime we get noclassdeferror. I am not sure on how to set classpath for oracle database jvm.
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best way is to set in your .profile (name differs between different shells, but whatever the OS/Shell is, it should starts with . and has a 'profile' string in the name). Try ls -a to find the file, edit it, insert lines like this:
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Exception thrown in JavaFX pretty printing: java.io.FileNotFoundException: \tmp\___FX_SCRIPT___.fxdump from StringInputBuffer (The system cannot find the path specified)
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http://java.sun.com/docs/books/tutorial/getStarted/applet/index.html
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Hi
I want to connect to my mySQL db with a java program , but I don't know how to install the mySQL connector driver. Can anyone help me? or indicate somewhere where I might find the answer?
And how to set Classpath for MySQL.
my program gives an exception ClassNotFound.
Exception :com.mysql.jdbc.Driver
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at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
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at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
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Thanx
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to make your life easy i tried to connect..
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Victor.

Hi Bhavik, thanks for response.
as I already mentioned it implements Serializable, so it is not the problem.
Thanks Avi but it didn't helps iether
Victor

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thanks

Hi,
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How to set classpath from java class ??

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