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What is unit testing and how do you do it? [duplicate]
...is a good introduction to the what and the how
http://www.nunit.org/index.php?p=quickStart&r=2.5
Is everything testable? Generally if it calculates something then yes. UI code is a whole other problem to deal with though, as simulating users clicking on buttons is tricky.
What should you test...
Different types of thread-safe Sets in Java
...
developer.com/java/article.php/10922_3829891_2/… < even better than a book )
– ycomp
Oct 18 '15 at 4:51
...
PostgreSQL: Difference between text and varchar (character varying)
...ength array).
Check this article from Depesz: http://www.depesz.com/index.php/2010/03/02/charx-vs-varcharx-vs-varchar-vs-text/
A couple of highlights:
To sum it all up:
char(n) – takes too much space when dealing with values shorter than n (pads them to n), and can lead to subtle err...
File Upload in WebView
... it has an image preview feature, if you want to make it work use a simple php upload without preview.
Update:
Please find the solution for lollipop devices here and thanks for gauntface
Update 2:
Complete solution for all android devices till oreo here and this is more advanced version, you sh...
What is Java Servlet?
...b server inside the web server itself. If you want something looking like PHP or ASP you need JSPs (which are a special kind of servlets)
– Thorbjørn Ravn Andersen
Aug 27 '11 at 10:20
...
How to create GUID / UUID?
...a UUID from Truly Random or Pseudo-Random Numbers: rfc-archive.org/getrfc.php?rfc=4122
– Jason DeFontes
Sep 19 '08 at 20:28
9
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How to call an external command?
...at you want in a CGI script. The problem is not specific to Python; in the PHP community the problems are the same.
The solution is to pass DETACHED_PROCESS Process Creation Flag to the underlying CreateProcess function in Windows API.
If you happen to have installed pywin32, you can import the fla...
How to upload files to server using JSP/Servlet?
....xml file:
http://joseluisbz.wordpress.com/2014/01/17/manually-installing-php-tomcat-and-httpd-lounge/#Enabling%20File%20Uploads.
<servlet>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
<multipart-c...
Is multiplication and division using shift operators in C actually faster?
...with the core i7:
(from http://software.intel.com/en-us/forums/showthread.php?t=61481)
The latency is 1 cycle for an integer addition and 3 cycles for an integer multiplication. You can find the latencies and thoughput in Appendix C of the "Intel® 64 and IA-32 Architectures Optimization Refere...
What is the difference between native code, machine code and assembly code?
...ictly speaking, most dynamically-typed languages — such as Perl, Python, PHP and Ruby — are also managed code. However, they are not commonly described as such, which shows that managed code is actually somewhat of a marketing term for the really big, serious, commercial programming environments...