The resource gets closed before catch or finally blocks. See this tutorial. A try-with-resources statement can have catch and finally blocks just like an ordinary try statement. In a try-with-resources statement, any catch or finally block is run after the resources declared have been closed. To evaluate this is a sample code: class ClosableDummy implements … Read more
The use of continue in a finally-clause is forbidden because its interpretation would have been problematic. What would you do if the finally-clause were being executed because of an exception? for i in range(10): print i try: raise RuntimeError finally: continue # if the loop continues, what would happen to the exception? print i It … Read more
It can be done totally non-hackily like this: def function(x,y,z): if condition1: blah elif condition2: blah2 else: return False #finally! clean up stuff. In some ways, not as convenient, as you have to use a separate function. However, good practice to not make too long functions anyway. Separating your logic into small easily readable (usually … Read more
The most useful case is when you need to release some resources : InputStream is = … try { //code… } catch (Exception e) { //code… } finally { is.close(); } More generally, you use it when you want to be sure your code is executed at the end, even if there was an exception … Read more
I think there’s one key misunderstanding: You either have someone who wants “success and finally”, or “success and error” but none wants the 3 of them. This isn’t entirely true. Each Observable can send zero or more next notifications and one error or complete notification but never both. For example when making a successful HTTP … Read more
Yes, the language spec defines that “2” is the result. If a VM does it differently, it’s not spec-compliant. Most compilers will complain about it. Eclipse, for example, will claim that the return block will never be executed, but it’s wrong. It’s shockingly bad practice to write code like that, don’t ever do it 🙂
The finally block contains statements to execute after the try and catch blocks execute but before the statements following the try…catch statement. The finally block executes whether or not an exception is thrown. If an exception is thrown, the statements in the finally block execute even if no catch block handles the exception. more The … Read more
On Windows, exceptions are supported at the operating system level. Called Structured Exception Handling (SEH), they are the rough equivalent to Unix signals. Compilers that generate code for Windows typically take advantage of this, they use the SEH infrastructure to implement C++ exceptions. In keeping with the C++ standard, the throw and catch keywords only … Read more
Returning from inside a finally block will cause exceptions to be lost. A return statement inside a finally block will cause any exception that might be thrown in the try or catch block to be discarded. According to the Java Language Specification: If execution of the try block completes abruptly for any other reason R, … Read more
The feature has been implemented in this pull request and is now part of AngularJS. It was initially called “always” and then later renamed to finally, so the code should be as follow: LoadingOverlay.start(); Auth.initialize().then(function() { // Success handler }, function() { // Error handler }).finally(function() { // Always execute this on both error and … Read more