What is Double Brace initialization in Java?

What is Double Brace initialization in Java?

What is Double Brace initialization syntax ({{ ... }}) in Java? 1:Double brace initialisation creates an anonymous class derived from the specified class (the outer braces), and provides an initialiser block within that class (the inner

JavaScript: client-side vs. server-side validation

JavaScript: client-side vs. server-side validation

Which is better to do client side or server side validation?In our situation we are using jQuery and MVC. JSON data to pass between our View and Controller. A lot of the validation I do is validating data as users enter it.For example I u

jQuery find events handlers registered with an object

jQuery find events handlers registered with an object

I need to find which event handlers are registered over an object.For example:$("#el").click(function() {...});$("#el").mouseover(function() {...});$("#el") has click and mouseover registered.Is there a function to find out that, and possib

NullPointerException accessing views in onCreate()

NullPointerException accessing views in onCreate()

This is a canonical question for a problem frequently posted on StackOverflow.I'm following a tutorial. I've created a new activity using a wizard. I get NullPointerException when attempting to call a method on Views obtained with findViewB

Rails 3 and Devise: Redirecting to page following signup (confirmable)

Rails 3 and Devise: Redirecting to page following signup (confirmable)

I have a Rails 3 project with Devise, confirmable enabled so the user has to confirm their account through email after registration. Currently the project returns the user to the login page and throws a "You've signed up successfully..." no

R error in unique.default(x) unique() applies only to vectors

R error in unique.default(x) unique() applies only to vectors

I created a dataset named state from the built-in matrix state.x77 with two continuous variables (Population and Income) and two factor variables (region and area).I computed mean income by region using tapply(), by(), aggregate(), and av

How to quickly check if URL server is available

How to quickly check if URL server is available

I have a URL in the formhttp://www.mywebsite.com/util/conv?a=1&from=%s&to=%sAnd want to check if it is available.The links redirect me on a bad request page if I try to open these with a browser, however via code I can get the data that I n

Rails force models to eager load

Rails force models to eager load

I would like to be able to load an entire app so that I may find the descendants of a given class.For example given I have the following class defined:# app/models/foo_class.rbclass FooClass It won't be found with:irb> ObjectSpace.each_obje

Malformed Facebook Access Token

Malformed Facebook Access Token

I'm trying to use the Facebook Graph API to grab photo albums from Facebook and place them on a website I'm working on. I am using PHP as my language with the Codeigniter framework and am redirecting to a Facebook URL to get an access token

Where does Console.WriteLine go in Debug?

Where does Console.WriteLine go in Debug?

I found this question, but what I want to know is different - does the output from Console.WriteLine go anywhere when debugging? I know that for it to go to the output window I should should Debug.WriteLine() or other methods, but where doe

Returning an Eloquent model as JSON in Laravel 4

Returning an Eloquent model as JSON in Laravel 4

How do you return an Eloquent model to the browser as JSON? What is the difference between the two methods below? Both seems to work.#1:return Response::json($user->toArray());#2:return $user->toJson(); 1:The actual data sent is the same

Get all past tweets via Twitter Streaming API

Get all past tweets via Twitter Streaming API

How can i get all past tweets via Twitter Streaming API? As you may know it sends real-time tweets, not past ones. Useful count parameter was disabled in 2010. REST API have so bad limitations that it would take a whole life to get all past

boost test - 'undefined reference' errors

boost test - 'undefined reference' errors

I have two simple files:runner.cpp:#define BOOST_TEST_DYN_LINK#define BOOST_TEST_MODULE Main#include and test1.cpp:#define BOOST_TEST_DYN_LINK#ifdef STAND_ALONE# define BOOST_TEST_MODULE Main#endif#include BOOST_AUTO_TEST_SUITE( Foo)BOOST

Prevent IIS from killing a Task before it ends

Prevent IIS from killing a Task before it ends

I'm building a Logging library that stores everything on an Azure table. Writing to that table obviously takes a lot of time (never more than 1 sec, but it's still too much to make the user wait), so Log method returns a LogResult instance,

Why are self-executing anonymous functions used in Javascript Module pattern?

Why are self-executing anonymous functions used in Javascript Module pattern?

In the module pattern in JavaScript "Immediately-Invoked Function Expressions" (also known as self-executing anonymous functions) are used as self executing functions that return an object. How can a self-executing function hide private var

What is the best way to sort a Core Data Entity?

What is the best way to sort a Core Data Entity?

I have a fully working core data model, but when I return the data using a fetch request, it's in a seemingly random order. What is the best way to sort this data? Is it to use another table in the Core Data model, and 'query' the first? Or

bridged cast: __bridge_transfer vs __bridge with synthesized setter

bridged cast: __bridge_transfer vs __bridge with synthesized setter

I am using ARC, and have confusion while using __bridge_transfer. I have a property userName as following:@property (nonatomic, retain) NSString *userName;[email protected] userName = _userName;...CASE 1:NSString *name = (__bridge_transfer NSS

How does one correctly dual-sign code with a timestamp?

How does one correctly dual-sign code with a timestamp?

I have two code signing certificates (one SHA-1, one SHA-256) which I'd like to apply to the same file. I tried to append the SHA-256 certificate, but this fails::: Signs with the SHA-1 certificatesigntool sign /sha1 8f52fa9db30525dfabb35b0

MySQL Select last 7 days

MySQL Select last 7 days

I read some Posts here and seems like nothing special but I can not still select the entries of the last days.SELECT p1.kArtikel, p1.cName, p1.cKurzBeschreibung, p1.dLetzteAktualisierung, p1.dErstellt, p1.cSeo, p2

Detecting integral overflow with scanf

Detecting integral overflow with scanf

When recently answering another question, I discovered a problem with code like:int n;scanf ("%d", &n);With strtol, you can detect overflow because, in that case, the maximum value allowed is inserted into n and errno is set to indicate the

WCF Errors using WCFTestClient to test a simple WCF Web Service

WCF Errors using WCFTestClient to test a simple WCF Web Service

When I try to test the AutoLotWCFService using "wcftestclient", I get the following error. What am I doing wrong? Any insight will help. This is a simple Web Service that has wshttpbinding with interface contract and the implementation in t

Python doesn't detect a closed socket until the second send

Python doesn't detect a closed socket until the second send

When I close the socket on one end of a connection, the other end gets an error the second time it sends data, but not the first time:import socketserver = socket.socket(socket.AF_INET, socket.SOCK_STREAM)server.bind(("localhost", 12345))se

OAuth 2.0 access token has expired, and a refresh token is not available

OAuth 2.0 access token has expired, and a refresh token is not available

I have a web based application which use Google OAuth2.0 as the login framework. It works nicely previously until yesterday. The applcation couldn't get the refresh token after the access token expired. Besides that, the "Request for permis

Statement.execute(sql) vs executeUpdate(sql) and executeQuery(sql)

Statement.execute(sql) vs executeUpdate(sql) and executeQuery(sql)

I have a question related to this method: st.execute(sql); where st obviously is a Statement object.Directly from this oracle java tutorial: execute: Returns true if the first object that the query returns is a ResultSet object. Use this

Get timezone used by datetime.datetime.fromtimestamp()

Get timezone used by datetime.datetime.fromtimestamp()

Is it possible, and if yes, how, to get the time zone (i.e. the UTC offset or a datetime.timezone instance with that offset) that is used by datetime.datetime.fromtimestamp() to convert a POSIX timestamp (seconds since the epoch) to a datet