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May 18, 2010 · These are two different things: The catch block is only executed if an exception is thrown in the try block. The finally block is executed always after the try (-catch) block, if an exception is thrown or not. In your example you haven't shown the third possible construct:
You then use the finally block, as a one time chance, to perform necessary clean-up like closing streams. The code after the finally block might never be reached. From the java tutorial. The finally block always executes when the try block exits. This ensures that the finally block is executed even if an unexpected exception occurs.
Oct 1, 2021 · The finally block always executes when the try block exits. This ensures that the finally block is executed even if an unexpected exception occurs. But finally is useful for more than just exception handling — it allows the programmer to avoid having cleanup code accidentally bypassed by a return, continue, or break.
The Java Language specification describes how try-catch-finally and try-catch blocks work at 14.20.2 In no place it specifies that the finally block is always executed. But for all cases in which the try - catch - finally and try - finally blocks complete it does specify that before completion finally must be executed.
Aug 6, 2010 · Note that (in Java at least, probably also in C#) it's also possible to have a try block without a catch, but with a finally. When an exception happens in the try block, the code in the finally block is run before the exception is thrown higher up:
May 7, 2013 · There are two situations where Finally won't get execute. Note: If the JVM exits while the try or catch code is being executed, then the finally block may not execute. Likewise, if the thread executing the try or catch code is interrupted or killed, the finally block may not execute even though the application as a whole continues. java reference
Jan 27, 2009 · 6. As of Java 7 you no longer need to explicitly close resources in a finally block instead you can use try -with-resources syntax. The try-with-resources statement is a try statement that declares one or more resources. A resource is an object that must be closed after the program is finished with it.
Dec 30, 2010 · 40. The Java Language Specification (1) describes how try-catch-finally is executed. Having no catch is equivalent to not having a catch able to catch the given Throwable. If execution of the try block completes abruptly because of a throw of a value V, then there is a choice: If the run-time type of V is assignable to the parameter of any ...
Jul 21, 2016 · But finally is useful for more than just exception handling — it allows the programmer to avoid having cleanup code accidentally bypassed by a return, continue, or break. Putting cleanup code in a finally block is always a good practice, even when no exceptions are anticipated. More here.
Dec 7, 2012 · final -. 1)When we apply " final " keyword to a variable,the value of that variable remains constant. (or) Once we declare a variable as final.the value of that variable cannot be changed. 2)It is useful when a variable value does not change during the life time of a program. static -.
