what is the best way  via code to find the directory a jar file was launched
from .
 ourProgramDirectory = System.getProperty("user.dir"); // this is not
correct!!!!!!

I want to create a installable package [setup.exe] in java.In my package i
want to include my jar file.
On running setup it should search for jvm on system if there is no jvm then
it should install it on the system.

What is the reason for not having methods like "indexOf" in the
LinkedHashSet class since the elements are sequenced anyway?

My java application creates an XML DOM object.
Does anybody know how to write this object into a file?
Please help me out.
regards,

Hello world,
i'm writing a java application to post some parameters to a jsp web page and
process the return html content.
I'd tried the tutorial on Writing to URL @ Sun's java home but fail.

I got a string whch can contains some forbidden characters 'é' or '/'
this kind of stuff.
so far I've done this :
myString  = myString.replace('é', '_');

register.jsp is the view page, and when the user click submit button,
it will go to result.jsp based on struts-config.xml. The followings
are the code fragment of each significant files.
My question is for result.jsp, I am now using

public enum A {
    A1_ASC,
    A1_DSC,
    A2_ASC,

Hello, i dont understand why i get the cant resolve symbol error.
I want to start an RMI server here.
import java.rmi.*;
import java.rmi.server.*;

Any suggestions on how I may compare two lines of text say allow for a
certain number of typo's?
I was thinking some form of regular expression, any ideas?

How to get the total number of lines of a text file

I've tried to develop with J2ME today.
I'm come from SuperWaba world....
I've tried some example provided with the Sun SDK and I try one devlopment.
I know how to add graphical component (button, String Item, list...) but

I have a form on my jsp page
I want image to be a submit button but i dont know how to do it <html:img
name="submit"> doesn`t work.
What should i write to solve this problem?

Can anyone help me to answer the following interview question? Thanks!
1. Change the following code so an instance of Person is immutable
once created. Please note that citiesVisited is an array
and may require special consideration.

I have just figured out how to use LiveConnect to use Javascript from
inside an Java Applet. I am doing this to dynamically generate HTML
elements. Previously, I was able to do all that using Javascript only,
no Java Applet and such. The project is going to be large and I did not