How to get parent URL in Java?

Question

In Objective-C I use -[NSURL URLByDeletingLastPathComponent] to get parent URL. What\'s the equivalent of this in Java?

Answer 1

Here is very simple solution which was the best approach in my use case:

private String getParent(String resourcePath) {
    int index = resourcePath.lastIndexOf('/');
    if (index > 0) {
        return resourcePath.substring(0, index);
    }
    return "/";
}

I created simple function, I was inspired by the code of File::getParent. In my code there is no issue with back slashes on Windows. I assume that resourcePath is resource part of URL, without protocol, domain and port number. (e.g. /articles/sport/atricle_nr_1234 )