java get jar path

To get the path of a jar file in Java, you can use the getProtectionDomain method of the Class class and the getCodeSource method of the ProtectionDomain class.

Here is an example of how to get the path of the current jar file:

String jarPath;
try {
    URL url = Main.class.getProtectionDomain().getCodeSource().getLocation();
    jarPath = new File(url.toURI()).getAbsolutePath();
} catch (URISyntaxException e) {
    jarPath = null;
}

The getProtectionDomain method returns a ProtectionDomain object representing the protection domain of the class, and the getCodeSource method returns a CodeSource object representing the code source (i.e. the jar file) of the class. The getLocation method returns the location of the code source as a URL, which we then convert to a File object using the toURI method and the File constructor. The getAbsolutePath method returns the absolute path of the File object, which is the path of the jar file.

Note that this approach assumes that the current class (Main in this example) is contained in the jar file whose path you want to get. If you want to get the path of a different jar file, you will need to specify the class contained in that jar file instead.