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How to get the first element of the List or Set? [duplicate]

...wered Jan 27 '15 at 11:18 Sonson123Sonson123 8,81199 gold badges4646 silver badges6868 bronze badges ...
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Create aar file in Android Studio

... answered Oct 16 '16 at 18:58 cn123hcn123h 2,16511 gold badge1818 silver badges1414 bronze badges ...
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How do I discard unstaged changes in Git?

... 123 And to be thorough about it, you'd want --include-untracked as well. – T.J. Crowder Mar 23 '15 at 7...
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Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?

...th that in mind, consider the difference between these three. new Integer(123); This (obviously) makes a brand new Integer object. Integer.parseInt("123"); This returns an int primitive value after parsing the String. Integer.valueOf("123"); This is more complex than the others. It starts ...
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Check if element exists in jQuery [duplicate]

...swered Feb 13 '14 at 4:38 Gaurav123Gaurav123 4,18566 gold badges4040 silver badges7070 bronze badges ...
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Can I change the height of an image in CSS :before/:after pseudo-elements?

...nswered Jan 23 '12 at 21:39 user123444555621user123444555621 123k2323 gold badges101101 silver badges120120 bronze badges ...
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How to create a .NET DateTime from ISO 8601 format

... Doesn't work for me with fractional digits. 2018-06-19T14:56:14.123Z is parsed as local time, not UTC. I use CultureInfo.InvariantCulture instead of null. – Erik Hart Jun 19 '18 at 12:46 ...
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HttpServletRequest to complete URL

...rvlet/MyServlet String pathInfo = req.getPathInfo(); // /a/b;c=123 String queryString = req.getQueryString(); // d=789 // Reconstruct original requesting URL StringBuilder url = new StringBuilder(); url.append(scheme).append("://").append(serverName); if (s...
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What is the behavior difference between return-path, reply-to and from?

...mpany.com> Subject: Super simple email Reply-To: <coolstuff-threadId=123@mymailinglist.com> This is a very simple body. Now, let's say you are going to send it from a mailing list, that implements VERP (or some other bounce tracking mechanism that uses a different return-path). Lets sa...
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Formatting Phone Numbers in PHP

... SMS app and need to be able to convert the sender's phone number from +11234567890 to 123-456-7890 so it can be compared to records in a MySQL database . ...