[YouTube-API] Strip away video url leaving only the video ID using Java Regular expressions?

Hi ,

I want to store the video IDs of the videos that have been shown in my website, to do this I need to strip away the video url just to store the video ID. The issue is that I have read some solution to this using regular expressions, one fo the solutions suggested by Jarek Wilkiewicz was to use this PHP regular expression $pattern = '/[^=]+=([^?]+)/'; , but this expression doesn't cover all the possible formats to show a YouTube video.

So my questions are :

- Are there any specific formats for the urls to show a video? Where can I check this?
- If that is not the case, can anyone help me to find out a regular expression in Java that covers all the possible formats to show a video in Youtube urls?

Thanks in advance for any help!!!

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