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What's the best practice to round a float to 2 decimals? [duplicate]
...that allows you to round a number to the number of decimals that you want. Now you need two, but maybe you would like to try with 3 to compare results, and this function gives you this freedom.
/**
* Round to certain number of decimals
*
* @param d
* @param decimalPlace
* @return
*/
public stati...
How to convert ActiveRecord results into an array of hashes
...rds = TaskStoreStatus.all
tasks_records = tasks_records.as_json
# You can now add new records and return the result as json by calling `to_json`
tasks_records << TaskStoreStatus.last.as_json
tasks_records << { :task_id => 10, :store_name => "Koramanagala", :store_region => "In...
What is a faster alternative to Python's http.server (or SimpleHTTPServer)?
...
This will download any required dependencies and install http-server.
Use
Now, from any directory, you can type:
http-server [path] [options]
Path is optional, defaulting to ./public if it exists, otherwise ./.
Options are [defaults]:
-p The port number to listen on [8080]
-a The host address to ...
How to increase storage for Android Emulator? (INSTALL_FAILED_INSUFFICIENT_STORAGE)
...o it manually by opening the AVD's pull-down menu and choosing Wipe Data.
Now start and use your Emulator with increased storage.
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What's the “big idea” behind compojure routes?
...s (the code is entirely self-documenting here).
Let's try using defroutes now:
(defroutes example-routes
(GET "/" [] "get")
(HEAD "/" [] "head"))
The responses to the example request displayed above and to its variant with :request-method :head are like expected.
The inner workings of examp...
How to change MySQL data directory?
...r reload
Restart MySQL with the command:
sudo /etc/init.d/mysql restart
Now login to MySQL and you can access the same databases you had before.
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What does java.lang.Thread.interrupt() do?
...ted ?
The interrupt mechanism is implemented
using an internal flag known as the
interrupt status. Invoking
Thread.interrupt sets this flag. When
a thread checks for an interrupt by
invoking the static method
Thread.interrupted, interrupt status
is cleared. The non-static
Thread....
Android Facebook style slide
...ou will need to implement only one Activity and one Fragment, let library know about it - and library will provide all wanted animations and navigation.
Inside the repo you can find demo-project, with how to use the lib to implement facebook-like navigation. Here is short video with record of demo ...
vs. . Which to use?
...
This answer was in 2009, since IE6 is dead now I assume there is no reason not to use <button> now?
– Rosdi Kasim
Feb 26 '13 at 11:06
77
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Concept of void pointer in C programming
...e a void* in two ways. Casting to char* is always acceptable, and if you know the original type it points to you can cast to that type. The void* has lost the type info so it'd have to be stored elsewhere.
– Dan Olson
Mar 29 '09 at 10:30
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