Use RegEx to match URL [closed]

by 

Pattern p = new Pattern("https://mon.contoso.com/mon/call.py?fn=edit&num=(\d+)")
Matcher m = p.matcher(inputEmail);
return m.matches() ? m.group(1) : "";

This returns num if it is numeric, otherwise you might want to use \w instead of \d. If you want the whole URL, remove the group() parameter.

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