How to know the dir where my jar program is stored

Question

I write a swing editor text files.
I make the jar of my program: Editor.jar
Then with jsmooth (open source java wrapper) i make the exe: Editor.exe.
The user can put the exe anywhere in a folder and use it, example:
User have a text file on desktop and want to open it:
User make a double click on file.txt --> Microsoft Windows Xp open my program and load the file.
All work correctly but there is one problem.
My program Editor.exe when is close make a Editor.properties file. I would like this file to be created in the same dir where Editor.exe is stored.
I don't know how to do this thing. I write this code:
public static void save(Properties propertiesFile) {     URL jarURL = (PropertiesFile.class.getClassLoader().getResource("."));          FileOutputStream out;     System.out.println("dir \n" + jarURL.getFile());          File f = new File(jarURL.getFile()+"Editor.settings");     try {          out = new FileOutputStream(f);                    propertiesFile.store(out, "Program settings");          out.close();     } catch (IOException ioe) {          ioe.printStackTrace();     }}
This code is wrong because jarURL.getFile() is the directory where file.txt is stored but i want the dir where Editor.exe is stored.
I try with this line of code:
URL location = getClass().getProtectionDomain().getCodeSource().getLocation();
i get this dir:
/C:/Documents%20and%20Settings/Andrew/Settings%20local/Temp/temp10
.jar
This is a correct dir, because the program is stored ind dir
c:\program files\editor\Editor.exe
Anybody can help me?
THX

Answer 1

try below...
public java.net.URL getResource(String strName)throws java.net.MalformedURLException
            String baseURL = getClass().getResource("/resources").getFile(); // ("/resources" ):- is a file /dir stored in in jar
            try{
                    baseURL = java.net.URLDecoder.decode(baseURL,"UTF-8");
            }catch(Exception e){}
            if(baseURL.startsWith("file:"))
                    baseURL = baseURL.substring(baseURL.indexOf(":")+1);
            java.io.File fBase = new java.io.File(baseURL);                    // Original URL Ref. To Jar Archive
            java.io.File jarFile = fBase.getParentFile();                    // Jar File Reference
            java.io.File rootDir = jarFile.getParentFile();                    // Root Directory which Contains Jar File
            java.io.File fileApp = new java.io.File(rootDir,strName);               // Requested File/Directory     
            if(fileApp.exists())
                return fileApp.toURL();
            else
                return null;
    }Timir