try-catch-finally

Consider the following code: @try { if (something.notvalid) { return; } // do something else } @catch (NSException *ex) { // handle exception } @finally { NSLog(@"finally!"); } If something is not valid and I return from within the try, does the code in @finally execute or not? I believe that it should but others I've spoken to don't think so and I'm unable to test this at the moment. progrmr @finally code always executes according to here and here . A @finally block contains code that must be executed whether an exception is thrown or not. Yes. Oddly enough, it does. I'm not sure why, but I

I am having problems catching an error in PowerShell when a connection fails to a SQL Server using Invoke-Sqlcmd. This is some generic code to demonstrate the issue: CLS $server = "Localhost\fake" try { Invoke-Sqlcmd -Query "SELECT DB_NAME() as [Database]" -Server $server } catch { Write-Host "Error connecting to server " $server } I get the following error: Invoke-Sqlcmd : A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured

I try to use the error handling modeling in Swift2. do { try NSFileManager.defaultManager().removeItemAtPath("path") } catch { // ... } finally { // compiler error. } But it seems that there is no finally keyword out there.How can I achieve try-catch-finally pattern in Swift.Any help is welcome. If you are thinking about the SWIFT 2.0 error handling to be the same thing as exception you are missunderstanding. This is not exception, this is an error that conforms to a protocol called ErrorType . The purpose of the block is to intercept the error thrown by a throwing function or method.

I am attempting to use JDK 7's "try-catch with resources" statement; IntelliJ highlights my resource line, saying Try-with-resources are not supported at this language level. When I try to compile, I get: java: try-with-resources is not supported in -source 1.6 (use -source 7 or higher to enable try-with-resources) I checked that try-with-resources is enabled for my current project, and that my project is using JDK 7 (Library: C:\Program Files\Java\jdk1.7.0_11). Any ideas? I can't figure out what option to change (if that's even the issue). Click on the File menu, open Project Structure, then

How does a return statement inside a try/catch block work? function example() { try { return true; } finally { return false; } } I'm expecting the output of this function to be true , but instead it is false ! Finally always executes. That's what it's for, which means it's return gets used in your case. You'll want to change your code so it's more like this: function example() { var returnState = false; // initialisation value is really up to the design try { returnState = true; } catch { returnState = false; } finally { return returnState; } } Generally speaking you never want to have more

It seems like it does as per some initial testing, but what I'd like to know is if it is guaranteed to return or if in some cases it can not return? This is critical for my application but I haven't found a use-case yet where it wouldn't return. I'd like to get expertise on the subject. Anything in a finally block will always be executed regardless of what happens inside the try or catch blocks. It doesn't matter if you return form the method or not. The only exception to this is if the code in the finally block throws an exception, then it will stop executing like any other block of code. In

I see that the Finally in Try .. Catch will always execute after any parts of the execution of the try catch block. Is it any different to just skip the Finally section and just run it after, outside the try catch block? Example 1, Try ... Catch ... Finally ... End Try Try 'Do something Catch ex As Exception 'Handle exception Finally 'Do cleanup End Try Example 2, Try ... Catch ... End Try ... Do the finally stuff outside Try 'Do something Catch ex As Exception 'Handle exception End Try 'Do cleanup Yes, it is different. Finally will always run (barring program crash). If the function exits