Please help me on Jar files

Question

Hi Friends,
I need on eurgent help on jar file,i need to make java application as an exe file.It is standalone swing application ,I want to make it as one double clickable exe file or i want to make it as jar file (it should execute when double c;licked.)If i can make a single jar file,there are some tools to make it as exe file.Now i can make my applicationa as sinlgle jar file which executes finely.But the problem i m facing is that, resource part.I have a properties file in the root folder.I want to read and write to the properties file.I can make it if it is at the root folder.But if it is inside the jar ,how can i write properteis file.I am able to read the properties fileinside the jar file using some Classlaoder,but i m not able to write the properties files inside the jar files.Please anybody can help me on this,/urgent please...I have read that somewhhere like jar file is read only so we cant write .Is there any way to do this ..hope someone helps..
thanks in advance
sumana

Answer 1

I hope forums is for urgent help..No, they are not. Searching forums might provide urgent help, or as I mentioned before, hiring a consultant.
..Sory if i wrote any mistakes and for my bad english .:(I do not mind bad English, but I do mind laziness. Your constant use of 'u' and 'ur' are not things likely to make me want to help you.
When you want my help, please do your best to [write well|http://catb.org/esr/faqs/smart-questions.html#writewell] *(<- link).*
But back to the technical problem. ejp provided a good solution back in [reply 4|http://forums.sun.com/thread.jspa?messageID=11025978#11025978] *(<- link).*
The only way I would tweak that solution is to put the properties file in a sub-directory of user.home based on the package name of the main class. That would help avoid name collisions between your app. and any other app. that might want to store (for example) user options.
I completely agree that it makes no sense to convert a Jar to a .exe.
On the other hand, if you can distribute from a web server and the application has a GUI, there is yet another option - [Java Web Start|http://java.sun.com/javase/technologies/desktop/javawebstart/index.jsp] *(<- link).*
JWS offers many nice features for the end user, and also provides the PersistenceService to allow the app. to store small amounts of data. Where it stores the data, I neither know nor care, just so long as it available to the app. the next time it runs. Here is a small [demo. of the PersistenceService|http://pscode.org/jws/api.html#ps] *(<- link).*
I would have provided that information around two days ago, when you first asked, but I was busy helping people who did not think their problem was more urgent than that of other people.
And no, I am not your friend either, just another guy on a forum.