This loop will always be executed at least once, even if the condition is If you're waiting for some other event in the system, use wait() or join() or the higher level tools in java.util.concurrent. W3Schools is optimized for learning, testing, and training.

Converting While Loop To For Loop; While(true) Statement In Sockets Programming; Send Message To All Connected Clients; Infinite While Loop; Sending Name Of Client To Server And Server Repeats It Back. This can be done from inside the loop, or you can have another method that sets it, so that other threads can pull the plug.It looks like you are busy waiting, assuming a standard First up, the straight answer to this problem by Dough Lea:It is almost never a good idea to use bare spins waiting for values of variables. Qui peut le rendre moins lisible.Cette mentalité est poussée à l'extrême les résultats dans le COMEFROM mot-clé. @pasabaporaqui It isn't duplicated because the two conditions are different. It's better to have the termination condition on the But maybe you're asking about what should go inside the loop. as the condition is true.The do/while statement is used when you want to run a loop The numbers in the table specify the first browser version that fully supports the statement.If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: Infinite loop means a loop that never ends. While loop to write an infinite loop : ‘while’ loop first checks a condition and then runs the code inside its block. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under The do/while statement is used when you want to run a loop at least one time, no matter what. your coworkers to find and share information. Featured on Meta Free 30 Day Trial

I will cover both while loop versions in this text.. Stack Overflow for Teams is a private, secure spot for you and

L'Utilisation De La Thread.onSpinWait, Fil.le rendement et/ou de blocage de synchronisation afin de mieux composer avec le fait que "finalement" peut être longue, surtout quand il y a plus de threads que de cœurs sur un système. naja es gibt einfach services oder server programme die ewig laufen sollen. Vous devez assurez-vous d'inclure certaines opération de blocage, c'est à dire, certains appel de fonction de l'endroit où votre fil d'attente pour quelqu'un d'autre (un autre fil, un autre programme, le système d'exploitation) à faire quelque chose. You can alternatively use poll with a timeout if you want to implement timeouts.Also swallowing the interrupted exception means your thread can never exit unless a RuntimeException occurs. That the two may be similar in your case is merely a coincidence, logically they are two separate conditions. and poll(100) will just wait for 100 ms and continue execution. So make sure to use Depends on the definition of "bad". Cela peut être fait à partir de l'intérieur de la boucle, ou vous pouvez avoir une autre méthode qui définit, alors que d'autres threads peuvent tirer la prise.On dirait que vous êtes occupé attente, en supposant un standard Il n'est presque jamais une bonne idée d'utiliser nue tours d'attente pour des valeurs de variables. If the expression evaluates to true, the while statement executes the statement(s) in the while block. In this case, the break becames lost in the middle of the source. Maintenant, vous avez juste besoin de faire en sorte que lorsque vous ajoutez quelque chose à votre messageQueue vous pouvez appeler Java+You, Download Today!. The Java while loop is similar to the for loop.The while loop enables your Java program to repeat a set of operations while a certain conditions is true.. peek == null) {Thread. The runtime may take action to improve the performance of invoking spin-wait loop constructions. while (true) {while (messageQueue. I'm looking for a better alternative to following code. The do/while statement creates a loop that executes a block of code once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.

eine programm das eine queue regelmäßig abarbeiten soll zb. By invoking this method within each iteration of a spin-wait loop construct, the calling thread indicates to the runtime that it is busy-waiting. while (true) { while (messageQueue.peek() == null) { Thread.onSpinWait(); } // do something with the message } By invoking this method within each iteration of a spin-wait loop construct, the calling thread indicates to the runtime that it is busy-waiting. Examples might be simplified to improve reading and basic understanding. Private self-hosted questions and answers for your enterpriseProgramming and related technical career opportunities@biziclop: condition "foo != null" must be duplicated. – pasaba por aqui Mar 17 '16 at 16:19 In this tutorial, I will show you how to write an infinite loop in Java using for and while loop. Vous pouvez toujours en liberté sous caution à l'aide de Le problème est ce qui se passe quand votre fils n'a rien à faire? See Java Concurrency In Practice, section 7.1. I have one thread that's producing messages one by one and putting them in the correct consumer's queue. Le moteur d'exécution peut prendre des mesures pour améliorer la performance de l'invocation de la spin-boucle d'attente des constructions.

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The Java while loop exist in two variations.