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How can I get the current date and time in UTC or GMT in Java?

...nerate a String to represent that value: Instant.now().toString() 2016-09-13T23:30:52.123Z Details As the correct answer by Jon Skeet stated, a java.util.Date object has no time zone†. But its toString implementation applies the JVM’s default time zone when generating the String repre...
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How do I show/hide a UIBarButtonItem?

... Here's a simple approach: hide: barbuttonItem.width = 0.01; show: barbuttonItem.width = 0; //(0 defaults to normal button width, which is the width of the text) I just ran it on my retina iPad, and .01 is small enough for it to not show up. ...
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Default value of function parameter

... same default value) is illegal. Parameters with default arguments have to form a contiguous group at the end of the parameter list. Now, keeping that in mind, in C++ you are allowed to "grow" the set of parameters that have default arguments from one declaration of the function to the next, as lo...
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Best way to select random rows PostgreSQL

...a variation of your "Possible alternative": stackoverflow.com/a/23634212/430128. Would be interested in your thoughts. – Raman May 13 '14 at 14:43 ...
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Deep null checking, is there a better way?

...arameterExpression)) throw new ApplicationException(String.Format("The expression '{0}' contains unsupported constructs.", expression)); object a = arg; while(stack.Count > 0) { ...
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Which commit has this blob?

... done – Mixologic Jun 18 '13 at 21:01 7 ...
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CSS Selector “(A or B) and C”?

... Any logical clause of the form a or b or c or d is the same as not(not(a) and not(b) and not(c) and not(d)) so 'or' is actually just a convenience function. In theory it should be possible to get by without it in all cases. In the OP's case (.a or ....
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Do we need semicolon at the end? [duplicate]

... 101 The concept is known as JavaScript Semicolon Insertion or "Automatic Semicolon Insertion". This...
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Rails formatting date

... Use Model.created_at.strftime("%FT%T") where, %F - The ISO 8601 date format (%Y-%m-%d) %T - 24-hour time (%H:%M:%S) Following are some of the frequently used useful list of Date and Time formats that you could specify in strftime method: Date (Year, Month, Day): %Y - Year with cen...
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Global variables in Javascript across multiple files

...obal: '+global); } HTML 1: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <script type="text/javascript" src="external.js">&...