How to determine the file extension of a file from a uri?

URLConnection. GuessContentType(url) would deliver the mime type as in the first answer. Maybe you simply wanted: String extension = url.getPath().

ReplaceFirst("^. */^/*(\\. ^\\.

/*|)$", "$1") The regular expression consuming all upto the last slash, then upto a period and either returns an extension like ". Owl" or "". (If not mistaken).

URLConnection. GuessContentType(url) would deliver the mime type as in the first answer. Maybe you simply wanted: String extension = url.getPath().

ReplaceFirst("^. */^/*(\\. ^\\.

/*|)$", "$1"); The regular expression consuming all upto the last slash, then upto a period and either returns an extension like ". Owl" or "". (If not mistaken).

There are two answers to this. If a URI does not have a "file extension", then there is no way that you can infer one by looking at it textually, or by converting it to a File. In general, neither the URI or the File needs to have an extension at all.

Extensions are just a file naming convention. What you are really after is the media type / MIMEtype / content type of the file. You may be able to determine the media type by doing something like this: URLConnection conn = url.connect(); String type = conn.getContentType(); However the getContentType() method may return null if it is not possible to determine or retrieve a content type.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.