CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

Hey fellow jQuery lovers, To add some basic error handling, I wanted to rewrite a piece of code that used jQuery's $.getJSON to pull in some photo's from Flickr. The reason for doing this is that $.getJSON doesn't provide error handling or work with timeouts.

I'm a naughty programmer, and until now I haven't handled errors properly (e.g. just catching a java.lang.Exception, printing a debug message, and moving on). When I do "handle" them, it's simply been to shut the compiler up.

I'm working on an API wrapper class, which is the first I've made. For the most part it hasn't been too difficult. Getting to the point where I need to deal with the potential of errors being returned by the API, however confused as to how I should go about dealing with them.

Apologies if this question has already been answered somewhere else, but I could not find any decisive answer when searching on it: I'm wondering when try-catch blocks are to be used in objective-c iPhone applications. Apple's "Introduction to the Objective-C Programming Language" state that exceptions are resource intensive and that one should "not use exceptions for general flow-control, or simply to signify errors." From reading a few related questions here I also gather that people are not often using this method in practice. So I guess the question is: what are the situations when it's appropriate to use try-catch blocks when developing for iPhone/Objective-C and when should they absolutely NOT be used? For example, I could use them to catch beyond bounds and other exceptions when working with objects in arrays. I have a method which performs are few tasks with objects that are passed on in a number of arrays. The method returns nil if an er

When writing code, there are many situations that must be treated as runtime errors : an alloc/init returns nil, a resource is not found, a [someClass canDoThis] returns NO for an absolutely-needed feature where YES would be the natural answer, ... For all these situations, I have written an exitWithMessage routine (that displays an alert box), and each class has a kill method that frees allocated memory. So... When in an init method, you have these kind of exceptions, I supposed you could do : [self kill]; [OneClass exitWithFatalErrorMessage]; return nil; - (void) exitWithFatalErrorMessage:(NSString*)message { UIAlertView* alert = [[UIAlertView alloc] initWithTitle:NSLocalizedStringFromTable(@"Error" @"ErrorMessages", @"") message:message delegate:self cancelButtonTitle:NSLocalizedStringFromTable(@"Understood", @"ErrorMessages", @"") otherButtonTitles: nil]; [alert show]; [alert release]; } - (void)alertV

When writing an app, you always have to write alloc/inits, get autoreleased datas returned by the framework classes, ... This may be 70% of the code, almost each single line of what you write... So... How do those returned object must be tested, to know if each of these calls have returned a correct object ? Testing the returned value each time, for each call, and treating the exception if you get nil where you expected an allocated object ? Letting the app crash ? How this must be done ?

I am creating a PHP application and I want to display the number of times an error has occurred. The problem that I am trying to figure out is if an error has already been reported or if its new using the following values: Message (ie: Attempted to divide by zero.) Stack trace (ie: at componentNETapp.Form1.btnTrackExceptionsUn_Click(Object sender, EventArgs e) ...) Source (ie: componentNETapp) Target site (ie: Void btnTrackExceptionsUn_Click(System.Object, System.EventArgs)) Thanks