Added working directory option. You can choose one of three locations to use as the working directory: User Home Directory, App Location, or Resources folder.
User Home Directory is the home directory of the user. This is equivalent to /Users/, or ~/. This is the default.
App Location is the directory of the app when it is run. Please note that it is not recommended that you use this location to store config files and such. Most users of your app will move it to the Applications folder and this folder is not a place to store config files.
Resources folder is a folder inside the app. It's equivalent to /Contents/Resources/.
To get this working directory as a File instance, you will need to call File f = new File(System.getProperty("user.dir"));