try-catch-finally
Is a finally block without a catch block a java anti-pattern?
In general, no, this is not an anti-pattern. The point of finally blocks is to make sure stuff gets cleaned up whether an exception is thrown or not. The whole point of exception handling is that, if you can’t deal with it, you let it bubble up to someone who can, through the relatively clean …
What’s the equivalent of finally in Swift
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. Basically there is …
IntelliJ IDE gives error when using Try-Catch with Resources
Click on the File menu, open Project Structure, then under “Settings” there should be “Project”. Within that tab, there’ll be an SDK Settings option which specifies the language version you want to use. See the JetBrains help page for more details (“Project language level”).
Why use finally
They differ if the try-block completes by throwing a java.lang.Throwable that is not a java.lang.Exception, for instance because it is a java.lang.Error such as AssertionError or OutOfMemoryError. the try-block completes abruptly using a control flow statement such a continue, break or return the catch-block completes abruptly (by throwing any throwable, or using a control flow …
In a finally block, can I tell if an exception has been thrown [duplicate]
There is no automatic way provided by Java. You could use a boolean flag: boolean success = false; try { reportStartWorkflow(); doThis(); doThat(); workHarder(); success = true; } finally { if (!success) System.out.println(“No success”); }
If I return out of a try/finally block in C# does the code in the finally always run?
There are a number of inaccuracies in the other answers. Control is passed to the finally block when control leaves the try block normally — that is, by a return, goto, break, continue, or simply falling off the end. Control is passed to the finally block when control leaves the try block via an exception …
How does the try catch finally block work?
Yes, the finally block gets run whether there is an exception or not. Try [ tryStatements ] [ Exit Try ] [ Catch [ exception [ As type ] ] [ When expression ] [ catchStatements ] [ Exit Try ] ] [ Catch … ] [ Finally [ finallyStatements ] ] –RUN ALWAYS End …
Can we use “return” in finally block [duplicate]
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, …
Multiple return statements without compiler error
It does not give a compilation error because it is allowed by the Java Language Specification. However, it gives a warning message because including a return statement in the finally block is usually a bad idea. What happens in your example is the following. The return statement in the try block is executed. However, the …