String result = completableFuture.get(); get() block until the Future is complete. completableFuture.complete("Future's Result"); // manually complete a Future // all the clients waiting for this future will get the specified result. 2. Running asynchronous computation using runAsync() run so...
你可以使用CompletableFuture.complete()手工的完成一个 Future: completableFuture.complete("Future's Result") 所有等待这个 Future 的客户端都将得到一个指定的结果,并且completableFuture.complete()之后的调用将被忽略。 2. 使用runAsync()运行异步计算 如果你想异步的运行一个后台任务并且不想改任务返回任务东西,这...
AI代码解释 staticvoidcompleteExceptionallyExample(){CompletableFuture cf=CompletableFuture.completedFuture("message").thenApplyAsync(String::toUpperCase,CompletableFuture.delayedExecutor(1,TimeUnit.SECONDS));CompletableFuture exceptionHandler=cf.handle((s,th)->{return(th!=null)?"message upon cancel":"";})...
By default, an annotation is applied on a java element only once. But, by any requirement, you have toapply a annotation more than once, then use@Repeatableannotation on your new annotation. @Repeatable has been added in latest java 8 release. @Repeatable(Schedules.class) public@interfaceSched...
Lambda表达式(也称为闭包)是整个Java 8发行版中最受期待的在Java语言层面上的改变,Lambda允许把函数作为一个方法的参数(函数作为参数传递进方法中),或者把代码看成数据:函数式程序员对这一概念非常熟悉。在JVM平台上的很多语言(Groovy,Scala,……)从一开始就有Lambda,但是Java程序员不得不使用毫无新意的匿名类来代...
JDK 23.0.1, 21.0.5, 17.0.13, 11.0.25, and 8u431 Have Been… Attend JavaOne to help celebrate 30 years of Java! JavaOne registration… The arrival of Java Card Development Kit 24.1 The Java Card team is excited to announce the general availability of the Java Card Development Kit v24.1...
The Java Tutorial. While the JOptionPane class may appear complex because of the large number of methods, almost all uses of this class are one-line calls to one of the static showXxxDialog methods shown below: Method NameDescription showConfirmDialog Asks a confirming question, like yes/no...
Java EE 8 Tutorial provides hands-on samples to help you learn Java EE 8 Java EE Samples provides even more material which demonstrates Java EE 8 technologies API Documentation Complete Java EE 8 API documentation at your fingertips You may also want to review the GlassFish Open Source Server ...
Refer to Swing Components Supporting Action for more details, and you can find more information in How to Use Actions, a section in The Java Tutorial. For further information see How to Use Buttons, Check Boxes, and Radio Buttons, a section in The Java Tutorial. Warning: Serialized ...
Master Java constructors with this comprehensive tutorial. Learn types, syntax, and examples to create efficient and reusable Java classes.