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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
...ition to objects, there are primitives. All objects in Java are descendant from java.lang.Object, but primitives are set apart and, presently*, not extensible by a programmer. Note also that primitives have "operators", not methods.
In Scala, on the other hand, everything is an object, all objects ...
How to parse a string to an int in C++?
...so, because lexical_cast is just a wrapper around stringstream, it suffers from the same problems that stringstream does: poor support for multiple number bases and poor error handling.
The best solution
Fortunately, somebody has already solved all of the above problems. The C standard library con...
How to cherry pick from 1 branch to another
...t cherry-pick -x <sha>
then at least you'll get the commit message from the original commit appended to your new commit, along with the original SHA, which is very useful for tracking cherry-picks.
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Redirecting to previous page after authentication in node.js using passport.js
... but I do have some troubles with redirecting the user to where he started from before being prompted to authenticate.
7 An...
Preventing twitter bootstrap carousel from auto sliding on page load
So is there anyway to prevent twitter bootstrap carousel from auto sliding on the page load unless the next or previous button is clicked?
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JavaScript global event mechanism
...r handling facility in JavaScript? The use case is catching function calls from flash that are not defined.
10 Answers
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Checking if an Android application is running in the background
...few variations of this solution if you'd like to check activity visibility from the service).
Example
Implement custom Application class (note the isActivityVisible() static method):
public class MyApplication extends Application {
public static boolean isActivityVisible() {
return activi...
What is the difference between == and equals() in Java?
...o parent classes have provided an override, then it defaults to the method from the ultimate parent class, Object, and so you're left with the Object#equals(Object o) method. Per the Object API this is the same as ==; that is, it returns true if and only if both variables refer to the same object, i...
How to get the request parameters in Symfony 2?
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It is different from what PHP uses, but it actually makes more sense. $_GET data is data from the query string (no GET request needed at all) and $_POST data is data from the request body (does not have to be a POST request either, could be ...
How to declare global variables in Android?
...class and make it available for your entire application. You can access it from any context using the Context.getApplicationContext() method (Activity also provides a method getApplication() which has the exact same effect). Following is an extremely simplified example, with caveats to follow:
clas...