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When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s
...ble schema or deal with tree like data?
Generally, in agile development we start designing system without knowing all requirement in upfront, where later on throughout development database system may need accommodate frequent design changes, showcasing MVP (Minimal Viable product).
Or you are dealin...
Is there a date format to display the day of the week in java?
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2018-W01-2
Week # 1 has the first Thursday of the calendar-year. Week starts on a Monday. A year has either 52 or 53 weeks. The last/first few days of a calendar-year may land in the next/previous week-based-year.
The single digit on the end is day-of-week, 1-7 for Monday-Sunday.
Add the Thr...
Java - get pixel array from image
...tTo2DUsingGetRGB:");
for (int i = 0; i < 10; i++) {
long startTime = System.nanoTime();
int[][] result = convertTo2DUsingGetRGB(hugeImage);
long endTime = System.nanoTime();
System.out.println(String.format("%-2d: %s", (i + 1), toString(endTime - startTim...
Selectively revert or checkout changes to a file in Git?
...ally. This means that you wouldn't have to add ./ before any filename that starts with a minus sign, if the filename comes after --.
– zrajm
Jan 29 '14 at 13:12
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The following sections have been defined but have not been rendered for the layout page “~/Views/Sha
...to ASP MVC 4 Beta tutorial http://www.asp.net/mvc/tutorials/mvc-4/getting-started-with-aspnet-mvc4/intro-to-aspnet-mvc-4
1...
Should I check in node_modules to git when creating a node.js app on Heroku?
I followed the basic getting started instructions for node.js on Heroku here:
12 Answers
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Visual Studio, debug one of multiple threads
...e mixed thread state as described
So in my case once the various threads started hitting my breakpoint I just hit Continue a few times until I identified the call I was looking for - then removed the breakpoint and stepped through the rest of the code while remaining on the same thread without int...
How do I change the root directory of an apache server? [closed]
...ad from that directory when a user makes a request that call on it.
Now restart your apache service (httpd -k restart) and you should be good to go.
Edit: Apache2 site config files are now typically kept in /etc/apache2/sites-available/ (Debian, Ubuntu, etc.).
...
What is the significance of load factor in HashMap?
...he items with the same hashcode in the same bucket using a data structure. Starting in Java 8, this data structure is a binary search tree. This makes the lookup worst-case time complexity O(lg(n)) with the very worst case occurring if all of the elements added happen to have the same hashcode.
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How can I check whether a numpy array is empty or not?
...n array is empty? Arrays don't grow or shrink in the same that lists do. Starting with a 'empty' array, and growing with np.append is a frequent novice error.
Using a list in if alist: hinges on its boolean value:
In [102]: bool([]) ...