Difference between .Equals, IComparable and IComparer

stackoverflow.com - 2012-06-25 18:12:25 - Similar - Report/Block

Can someone please explain with example that I can understand about the difference between .Equals, IComparable and IComparer. I was asked this in an interview.

How Java's ThreadPoolExecutor uses custom ThreadFactory?

stackoverflow.com - 2012-03-27 08:47:56 - Similar - Report/Block

The ThreadPoolExecutor class allows to give a custom ThreadFactory to create new threads. However, I do not understand how these threads are used within sun's implementation of ThreadPoolExecutor. This implementation creates new thread as follows: private Thread addThread(Runnable firstTask) { Worker w = new Worker(firstTask); Thr...

How to set the rootviewcontroller correctly

stackoverflow.com - 2012-05-16 02:05:16 - Similar - Report/Block

I know that in the AppDelegate.m you must set the root controller for the application. Otherwise you will see nothing in your App and receive a warning. I find that some material use: [window addSubview:anyViewController.view]; or use: window.rootViewController = anyViewController; Both the two methods could make the App start correctly.

Default implementation of splitViewController:shouldHideViewController:inOrientation:

stackoverflow.com - 2012-02-21 00:00:20 - Similar - Report/Block

Hi, the default implementation of splitViewController:shouldHideViewContro ller:inOrientation: method in the UISplitViewControllerDelegate protocol is as given below. - return UIInterfaceOrientationIsPortrait(orienta tion); How to locate this implementation in Xcode? I can go over to the declaration of this method in UISplitViewController.h...

jQuery click() and changing the checked value

stackoverflow.com - 2012-05-14 23:48:36 - Similar - Report/Block

Behold the following jsfiddle: http://jsfiddle.net/RA3GS/3/ If you check on the checkboxes manually, you see that they say they are checked when they are checked and remain checked. However, if you push the test buttons you'll see that they either say they are checked, and then become unchecked, or say that they are not checked, and say t...

Swagger-PHP for generating JSON file Swagger-UI

stackoverflow.com - 2013-05-03 12:42:19 - Similar - Report/Block

I am trying to use Swagger-PHP for generating JSON files , so that I can use it with Swagger-UI for auto documentation. I tried the link :- https://github.com/zircote/swagger-php Also I tried to work around with there documentation at http://zircote.com/swagger-php/installat ion.html But my hard luck , I am unable to implement it. I am abl...

difference between pthread_spinlock and boost::smart_ptr::spinlock?

stackoverflow.com - 2012-06-20 03:33:46 - Similar - Report/Block

I found the following spinlock code in boost::smart_ptr bool try_lock() return (__sync_lock_test_and_set(&v_, 1) == 0); void lock() for (unsigned k=0; !try_lock(); ++k) { if (k<4) ; // spin else if (k < 16) __asm__ __volatile__("pause"); // was ("rep; nop" ::: "memory") else if (k < 32 || k & 1) sched_yield(); e...

IEditableObject Sophositicated Implementation

stackoverflow.com - 2013-06-09 23:41:59 - Similar - Report/Block

I am looking for an IEditableObject implementation with support for dirty data tracking that could work not just for a single object with ValueType (primitive) properties but entire object graphs that may contain references and collection properties. If there isn't such implementation available, would you provide a few guidelines or hin...

Wire.h lib error with implementation of object

stackoverflow.com - 2013-03-22 15:08:57 - Similar - Report/Block

I am using the Wire.cpp library and if you open the file you will see at the end.This line extern TwoWire Wire; The lib is by default inside Arduino IDE at the examples. I am using Eclipse. I get an error that a method must be implemented. Description Resource Path Location Type The type 'TwoWire' must implement the inherited pure virtua...

Relevance Vector Machine

stackoverflow.com - 2013-06-12 00:32:28 - Similar - Report/Block

I am looking for a descent implementation of s. Can anyone recommend an python library or C++ implementation that I could interface? Thanks heaps in advance,...

What's your favorite implementation of producing the Fibonacci sequence?

stackoverflow.com - 2008-11-11 01:01:25 - Similar - Report/Block

What's your favorite implementation of producing the Fibonacci sequence? Best, most creative, most clever, fastest, smallest, written in weirdest language, etc., etc. For those not familiar with this staple of programming exam question / interview question, check this out: Fibonacci Sequence at Wikipedia The question would be, write a sim...

Rearranging UITableViewCells causes cell contents to break

stackoverflow.com - 2012-03-05 19:07:30 - Similar - Report/Block

I have an iOS4 iPad app that I'm upgrading to iOS5, and there is one issue that I don't fully understand what is going on. The view in question uses a UITableView with a number of subclassed UITableViewCells to display a series of different (and modifiable) fields. Each cell contains UI buttons, UITextFields, etc etc, and is used to read...

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Core Data not automatically calling value transformer when getting / setting attribute directly in code

stackoverflow.com - 2013-04-07 11:34:42 - Similar - Report/Block

If I understand correctly, the idea behind Core Data transformable attributes is: implement an NSValueTransformer subclass with returns [NSData class] in +transformedValueClass along with its implementation for transformation register the transformer in +load or +initialize set an entity's attribute as transformable set a name for you...

Is there any implementation of bidirectional search for dijkstra algorithm?

stackoverflow.com - 2012-05-28 13:08:06 - Similar - Report/Block

I am looking for an implementation of bidirectional search for dijkstra(or any other source to destination sp algorithm) in Java. As bidirectionnal search processing is trickier than it looks like ( Graph Algorithms, p.26 ), I want to consider existing implementation before reinventing the wheel ! PS : I am talking about bidirectional sea...

PLSA implementation in Python

stackoverflow.com - 2012-03-12 14:05:29 - Similar - Report/Block

Is their any library containing implementation of PLSA (Probabilistic Latent Semantic Analysis) algorithm ? Preferably in python, but Java/C++ is also welcomed...

Wy do default Storyboard apps have a second implementation

stackoverflow.com - 2012-02-27 21:28:22 - Similar - Report/Block

Sorry if this is stupid... but it confuses me?... I'm trying a new storyboard app with Xcode and just asked myself why there is a send declaration of the @interface in my implementation file? #import <UIKit/UIKit.h> @interface ViewController : UIViewController { #import "ViewController.h" @interface ViewController () @implementation...

How to properly deprecate a method in Xcode 4

stackoverflow.com - 2012-04-11 07:33:14 - Similar - Report/Block

I've just looked over the answers but didn't help. When I add a deprecated attribute only to method declaration than the compiler says Attributes on method implementation and its declaration must match . Do I need to add smth to method implementation? Thanks!...

Eloquent relationships

packtpub.com - 2013-01-28 13:15:54 - Similar - Report/Block

In this article by Shawn McCool, the author of Laravel Starter , we will discuss . Eloquent is Laravel's native ActiveRecord implementation. It is built upon Laravel's Fluent Query Builder. Due to the way in which Eloquent operates with Fluent, complex queries and relationships are easy to describe and understand.

gwt/smartgwt beginner- code works correctly in dev mode, but compiled html file does not display correctly

stackoverflow.com - 2012-03-18 07:58:24 - Similar - Report/Block

I am working to create a simple html app using a sample from the Smart GWT Showcase, specifically from the drag and drop section. While the html file displays correctly in dev mode, when I actually try to run it directly from the war directory, a blank screen is shown (in IE/Firefox and Chrome). Why is this happening? How do I tackle this...

Fullcalendar on Rails, different colors for different tasks

stackoverflow.com - 2013-03-15 20:07:29 - Similar - Report/Block

I am trying to edit Jquery Fullcalendar that is running on my rails application. I cant figure out how to make it recognize different types of tasks, which come from the same source, and style them according to their type. I followed this https://github.com/bokmann/fullcalendar- rails as an example when I was implementing it. Honestly I c...

Slick2D and Tiled Map Editor - Sprite Shadows

gamedev.net - 2013-02-05 05:15:53 - Similar - Report/Block

Just started learning Java a few weeks ago and got into Slick2D to get me started on creating some games. I started using some free sprites from this site and loaded then into Tiled Map Editor. everything worked correctly expect for the shadows. At the moment they look like this Tiled Map Editor allows me to remove the blue background to...

Mergesort Implementation.. Counting number of inversions in an array

stackoverflow.com - 2012-03-19 06:47:09 - Similar - Report/Block

I'm taking an online class on Algorithms and trying to implement a mergesort implementation of finding the number of inversions in a list of numbers. But, I cant figure what Im doing wrong with my implementation as the number of inversions returned is significantly lower than the number I get while doing a brute force approach. Ive placed...

How to edit the registry keys of a specific user programatically?

stackoverflow.com - 2012-04-02 16:23:13 - Similar - Report/Block

I want to change a few settings of a Windows user that I created in my application. If I understand correctly, his " HKEY_CURRENT_USER " values will be under HKEY_USERS/<sid>/... . Is this correct? How can I get the sid of the user, if I know the user name and the domain?...

Is there a general concrete implementation of a KeyedCollection?

stackoverflow.com - 2009-12-03 21:23:40 - Similar - Report/Block

System.Collections.ObjectModel.KeyedColl ection class is a very useful alternative to System.Collections.Generic.Dictionary , especially when the key data is part of the object being stored or you want to be able to enumerate the items in order. Unfortunately, the class is abstract, and I am unable to find a general concrete implementatio...

What exactly is an "OAuth Provider"?

stackoverflow.com - 2012-04-23 15:56:05 - Similar - Report/Block

I want to understand what is usually meant by the term "OAuth Provider". There seems no mention of it in the OAuth specification If we consider a OAuth Provider as a component of an application, what functions does it perform (e.g. authorization, implementation of API methods, etc.)? How does it relate to the rest of the application?...

Is there any difference between a private and protected pure virtual function?

stackoverflow.com - 2012-03-19 02:57:41 - Similar - Report/Block

I can understand that there might be a reason to declare an implemented (as opposed to pure) virtual function private or protected. Afaik, if you declare an implemented virtual method as protected, your child class can call the base class's method (and nobody else can). If you declare it private, than only the base class can call the defa...

Higher-kinded types-why possible Scala but not F#?

stackoverflow.com - 2013-02-26 04:12:51 - Similar - Report/Block

I had always heard that the CLR has a better generics implementation than the JVM which supposedly doesn't have generics at all but is rather some kind of Java compiler trick. So if the CLR has the better generics implementation, why are higher-kinded types not possible in F# but possible in Scala? Does the CLR generics implementation som...

QThread queries

stackoverflow.com - 2012-03-15 21:53:56 - Similar - Report/Block

as suggested in GUI design issues using C++ , Qt on Windows (Vista) i am now trying to incorporate multithreading..according to the links given by karlphillip i understand that documentation about subclassing QThread is not to be followed and to use moveToThread() as explained...now i see that default implementation of QThread run() has...

Whats going to happen with COleTemplateServer::RegisterAll() in windows 7

stackoverflow.com - 2012-06-15 13:16:50 - Similar - Report/Block

Ok, so we have a C++ app that runs fine in Windows XP. It has the following code in the initialization // Register all OLE server (factories) as running. This enables the // OLE libraries to create objects from other applications. COleObjectFactory::RegisterAll(); Now like i said, it works fine in Windows XP, but as far I understand the p...

Visual Studio: Is there a way to navigate to real implementation of method behind an interface?

stackoverflow.com - 2011-01-11 22:18:07 - Similar - Report/Block

In Visual Studio, when you right-click a method call, you go to the implementation of that method inside a class except if you access this method through an interface: in that case you go to the interface method not to the actual implementation. Is there a way / tips (key shortcut or anything) to access this actual implementation ? Otherw...

Java ArrayList implementation

stackoverflow.com - 2013-04-26 10:02:32 - Similar - Report/Block

I have been trying to compare definition of list and its implementation in Java as I feel there is a mismatch. Definition Of List DataStructure : a list or sequence is an abstract data type that implements an ordered collection of values, where the same value may occur more than once. [Taken from : http://en.wikipedia.org/wiki/List_(abstr ...

What does this Ruby code do?: def self.metaclass; class << self; self; end; end

stackoverflow.com - 2012-04-11 04:45:35 - Similar - Report/Block

The following is a Ruby code snippet from Why's Poignant Guide to Ruby Chapter 6 , where he attempts to demonstrate metaprogramming in Ruby: # Get a metaclass for this class def self.metaclass; class << self; self; end; end I am not that well acquainted with Ruby, but is this what it would look like in expanded form? def self.metacl...

Accesing a function bound to a var in clojure

stackoverflow.com - 2013-03-24 10:04:02 - Similar - Report/Block

So if I understand this correctly, when I write (defn foo [x] (+ (* (- x 3) 2) (- x 3))) foo gets bound to (fn [x] (+ (* (- x 3) 2) (- x 3))). How do I access the function from foo? My intention is to change something in the function and return a new function.

Please help me understand this nios2 code

stackoverflow.com - 2013-04-21 06:06:28 - Similar - Report/Block

We're supplied some assembly for nios2 that I don't fully understand. If we can start with this instruction then I don't understand what it's for: .set noat # required since we push r1 What does it mean? I looked in the manual but there was nothing that matched this. Besides the instruction above I think that I can understand the individ...

C++ "Rules" for keyword inclusion in Header file vs Source/Implementation file

stackoverflow.com - 2013-03-01 13:10:25 - Similar - Report/Block

Must be honest, I am getting confused between what keywords go in the function (and sometimes data member) declarations in the header file, versus what goes in the implementation file. What is the set of rules to follow? For example (Updated per comments) Header files don't contain implementation except if the function is declared as "inl...

JsonSerializer calling container Equals override method

stackoverflow.com - 2013-04-05 09:10:06 - Similar - Report/Block

First of all had a good look around and understand override/virtual etc. But haven't found any cases specific to my situation - which I'm sure isn't unique. I want to just make sure the implementation I go with is the right implementation. I have the following code setup to demonstrate my issue: using System; using System.Collections.Gene...

Filling Sidebar Implementation with Rails and Bootstrap

stackoverflow.com - 2012-04-27 18:02:14 - Similar - Report/Block

This is mostly an implementation question for a webapp I'm trying to develop. I'm relatively inexperienced so I want to check if my idea for implementation is decent or if there's a much easier way. The Problem I want to create a scrollable sidebar that automatically fills with small containers that hold a user profile photo and their nam...

ESC calibration on KK2.0

helifreak.com - 2013-06-09 13:44:40 - Similar - Report/Block

I recieved my kk2 and calibrated my esc(quattro 4 in 1) without the sound device on the kk2. I must have done this correctly as the motors will respond in unison and I have flown it a handful of times, it flies great! My question is, is it possible that the esc came all ready to go ( calibrated) or did I get lucky and I actually did do th...

Rails form select from two options with a button - custom form implementation

stackoverflow.com - 2013-04-20 03:53:27 - Similar - Report/Block

I have a website where I want users to be able to select what type of user they are during the registration process. Specifically, the implementation I want is to have two buttons on the signup page, one called "Seller" and one called "Buyer". The user should be able to select only one button and once clicked, it should stay highlighted (...

Поиск максимального значения в хэш-таблице C# - C# для начинающих

cyberforum.ru - 2013-06-01 11:39:32 - Similar - Report/Block

Помогите) Нужно организовать поиск максимального значения в хэш-таблице, используя интерфейс IComparable. Значения целочисленные. Кидайте образцы кода и ссылки на материал, где было бы объяснено, как всё это делается. Спасибо.


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