Parse file name from URL before downloading the file

Question

I\'m downloading an ePub file from a URL.

Now I want to implement a mechanism by which if user tries to re-download the same file, he should get warning/error messag

Answer 1

I think using URL#getPath() should simplify things.

public static String getFileNameFromUrl(URL url) {

    String urlPath = url.getPath();

    return urlPath.substring(urlPath.lastIndexOf('/') + 1);
}

See, http://developer.android.com/reference/java/net/URL.html#getPath()