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Why is there no Constant feature in Java?
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Every time I go from heavy C++ coding to Java, it takes me a little while to adapt to the lack of const-correctness in Java. This usage of const in C++ is much different than just declaring constant variables, if you didn't know. Essential...
How to atomically delete keys matching a pattern using Redis
...ata to keys prefix:3:1 and prefix:3:2. Then you can safely take old values from prefix:2:1 and prefix:2:2 and purge old keys.
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Android Webview - Webpage should fit the device screen
...onstant that I knew beforehand, since I was just displaying a single image from the assets folder. As I said above, I don't know how you can get the width of the actual webpage.
– danh32
Feb 8 '12 at 14:43
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How can I explode and trim whitespace?
For example, I would like to create an array from the elements in this string:
11 Answers
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What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?
...ng binary data using only printable (text) characters.
See this paragraph from the wikipedia page for HTTP Basic Authentication:
While encoding the user name and password with the Base64 algorithm typically makes them unreadable by the naked eye, they are as easily decoded as they are encoded. ...
How can jQuery deferred be used?
...se I can think of is in caching AJAX responses. Here's a modified example from Rebecca Murphey's intro post on the topic:
var cache = {};
function getData( val ){
// return either the cached value or jqXHR object wrapped Promise
return $.when(
cache[ val ] ||
$.ajax('/fo...
Why do Java webapps use .do extension? Where did it come from?
...estions%2f3597582%2fwhy-do-java-webapps-use-do-extension-where-did-it-come-from%23new-answer', 'question_page');
}
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How does autowiring work in Spring?
...nt for a Spring-MVC application is the DispatcherServlet, but it is hidden from you, and hence the direct interaction and bootstrapping of the application context happens behind the scene.
UserServiceImpl should also be defined as bean - either using <bean id=".." class=".."> or using the @Ser...
What is reflection and why is it useful?
...methods which are marked or work in a certain way is still common.
Update from a comment:
The ability to inspect the code in the system and see object types is
not reflection, but rather Type Introspection. Reflection is then the
ability to make modifications at runtime by making use of
i...
STL or Qt containers?
... using std::(w)string and the STL containers exclusively and converting to/from the Qt equivalents, but I have already switched to QString and I find that I'm using Qt's containers more and more.
When it comes to strings, QString offers much more complete functionality compared to std::basic_string...