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Can an interface extend multiple interfaces in Java?
...hen single implementation works for both :).
Read my complete post here:
http://codeinventions.blogspot.com/2014/07/can-interface-extend-multiple.html
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How to get domain URL and application name?
...e web application name (actually the context path) is available by calling HttpServletrequest#getContextPath() (and thus NOT getServletPath() as one suggested before). You can retrieve this in JSP by ${pageContext.request.contextPath}.
<p>The context path is: ${pageContext.request.contextPat...
Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
...from (irb):17
>>
I also really encourage you to try ruby-debug:
http://railscasts.com/episodes/54-debugging-with-ruby-debug
http://www.sitepoint.com/article/debug-rails-app-ruby-debug/
http://www.datanoise.com/articles/2006/7/12/tutorial-on-ruby-debug
It's incredibly helpful!
...
How to make a smooth image rotation in Android?
... version="1.0" encoding="utf-8"?>
<linearInterpolator xmlns:android="http://schemas.android.com/apk/res/android" />
And add to your animation XML:
android:interpolator="@anim/linear_interpolator"
Special Note: If your rotate animation is inside a set, setting the interpolator does not ...
Highlight the difference between two strings in PHP
...but archive.org has a copy of the site: web.archive.org/web/20080506155528/http://software.zuavra.net/…
– R. Hill
Jan 25 '11 at 13:49
15
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callback to handle completion of pipe
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Based nodejs document, http://nodejs.org/api/stream.html#stream_event_finish,
it should handle writableStream's finish event.
var writable = getWriteable();
var readable = getReadable();
readable.pipe(writable);
writable.on('finish', function(){ ....
How to set HTTP header to UTF-8 using PHP which is valid in W3C validator?
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Use header to modify the HTTP header:
header('Content-Type: text/html; charset=utf-8');
Note to call this function before any output has been sent to the client. Otherwise the header has been sent too and you obviously can’t change it any more. ...
Using psql how do I list extensions installed in a database?
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In psql that would be
\dx
See the manual for details: http://www.postgresql.org/docs/current/static/app-psql.html
Doing it in plain SQL it would be a select on pg_extension:
SELECT *
FROM pg_extension
http://www.postgresql.org/docs/current/static/catalog-pg-extension.html
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Deserializing JSON data to C# using JSON.NET
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Answer reproduced from https://stackoverflow.com/a/10718128/776476
You can use the C# dynamic type to make things easier. This technique also makes re-factoring simpler as it does not rely on magic-strings.
Json
The json string below is a simpl...
What is an 'endpoint' in Flask?
...ses the above view. The user enters the following URL into their browser:
http://www.example.org/greeting/Mark
The job of Flask is to take this URL, figure out what the user wants to do, and pass it on to one of your many python functions for handling. It takes the path:
/greeting/Mark
...and ...