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Converting Long to Date in Java returns 1970

...time as long in milliseconds, not seconds. You need to multiply it by 1000 and make sure that you supply it as long. Date d = new Date(1220227200L * 1000); This shows here Sun Aug 31 20:00:00 GMT-04:00 2008 share ...
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What is the difference between `-fpic` and `-fPIC` gcc parameters?

I've already read the gcc manpage, but I still can't understand the difference between -fpic and -fPIC . Can someone explain it, in a very simple and clear way? ...
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Which is preferred: Nullable.HasValue or Nullable != null?

...eal difference. Just do whichever is more readable/makes more sense to you and your colleagues. share | improve this answer | follow | ...
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How to create Gmail filter searching for text only at start of subject line?

... Regex is not on the list of search features, and it was on (more or less, as Better message search functionality (i.e. Wildcard and partial word search)) the list of pre-canned feature requests, so the answer is "you cannot do this via the Gmail web UI" :-( There are ...
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How do I capture response of form.submit

...n javascript. When you post a form, the form inputs are sent to the server and your page is refreshed - the data is handled on the server side. That is, the submit() function doesn't actually return anything, it just sends the form data to the server. If you really wanted to get the response in Jav...
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What's the best way to trim std::string?

... EDIT Since c++17, some parts of the standard library were removed. Fortunately, starting with c++11, we have lambdas which are a superior solution. #include <algorithm> #include <cctype> #include <locale> // trim from start (in place) static i...
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#define macro for debug printing in C?

...on: #ifdef DEBUG #define DEBUG_TEST 1 #else #define DEBUG_TEST 0 #endif And then use DEBUG_TEST where I used DEBUG. If you insist on a string literal for the format string (probably a good idea anyway), you can also introduce things like __FILE__, __LINE__ and __func__ into the output, which can...
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How do I rename an open file in Emacs?

...e: http://steve.yegge.googlepages.com/my-dot-emacs-file (defun rename-file-and-buffer (new-name) "Renames both current buffer and file it's visiting to NEW-NAME." (interactive "sNew name: ") (let ((name (buffer-name)) (filename (buffer-file-name))) (if (not filename) (messa...
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What is the difference between Android margin start/end and right/left?

What is difference between Android margin start and right (or margin end and left)? 2 Answers ...
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What is “export default” in javascript?

...ello! Update: As of June 2015, the module system is defined in §15.2 and the export syntax in particular is defined in §15.2.3 of the ECMAScript 2015 specification. share | improve this answe...