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Can we write our own iterator in Java?
...interface. If you're using an existing iterable object (say, a LinkedList) from java.util, you'll need to either subclass it and override its iterator function so that you return your own, or provide a means of wrapping a standard iterator in your special Iterator instance (which has the advantage o...
Storing Objects in HTML5 localStorage
...setItem('testObject', JSON.stringify(testObject));
// Retrieve the object from storage
var retrievedObject = localStorage.getItem('testObject');
console.log('retrievedObject: ', JSON.parse(retrievedObject));
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When should I create a destructor?
... on their own thread. Don't cause deadlocks!
An unhandled exception thrown from a destructor is bad news. It's on its own thread; who is going to catch it?
A destructor may be called on an object after the constructor starts but before the constructor finishes. A properly written destructor will not...
Should I write script in the body or the head of the html? [duplicate]
... Good answer, technically putting scripts in the header is clean, but from an end user point of view and SEO putting scripts right at the bottom of the document as the very last thing has many, many benefits. On some pages I've seen the apparent responsiveness of the page increase many fold ju...
What new capabilities do user-defined literals add to C++?
... a struct, including booleans, integers, etc., and have all structs derive from Object. This decision alone puts .NET far beyond Java's reach when working with primitives, no matter how much boxing/unboxing hacks Java will add to its specification.
Do YOU really need it in C++?
This question is for ...
Why isn't vector a STL container?
...so each bool takes a byte and you can take the address of the value return from operator[].
Finally note that the MS standard library implementation is (arguably) suboptimal in that it uses a small chunk size for deques, which means that using deque as a substitute isn't always the right answer.
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What is the difference between trie and radix trie data structures?
...its (or a hexidecimal digit: 0x0 through to 0xf).
This diagram, retrieved from Wikipedia, seems to depict a trie with (at least) the keys 'A', 'to', 'tea', 'ted', 'ten' and 'inn' inserted:
If this trie were to store items for the keys 't', 'te', 'i' or 'in' there would need to be extra informati...
Rails migration for has_and_belongs_to_many join table
...p columns. Here is a better example of a has_and_belongs_to_many migration from the link you gave. I'm looking for a way to do it from the command line with script/generate migration ...
– ma11hew28
Dec 7 '10 at 20:44
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How to make overlay control above all other controls?
...r Grid in your layout, give the control to be put on top a higher ZIndex.
From MSDN:
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="ZIndex Sample">
<Canvas>
<Rectangle Canvas.ZIndex="3" Width="100" Height="100" Canvas.Top="100" Canvas.Left...
spring scoped proxy bean
...property name="userPreferences" ref="userPreferences"/>
</bean>
From the above configuration it is evident that the singleton bean 'userManager' is being injected with a reference to the HTTP Session-scoped bean 'userPreferences'. The salient point here is that the 'userManager' bean is a...