"custom-executor-"+count++);}});staticvoidthenApplyAsyncWithExecutorExample(){CompletableFuture cf=CompletableFuture.completedFuture("message").thenApplyAsync(s->{assertTrue(Thread.currentThread().getName().startsWith("custom-executor
static void cancelExample() { CompletableFuture cf = CompletableFuture.completedFuture("message").thenApplyAsync(String::toUpperCase, CompletableFuture.delayedExecutor(1, TimeUnit.SECONDS)); CompletableFuture cf2 = cf.exceptionally(throwable -> "canceled message"); assertTrue("Was not cance...
import java.util.concurrent.CompletableFuture;import java.util.concurrent.ExecutionException;public class CompletableFutureExample {public static void main(String[] args) throws ExecutionException, InterruptedException {// 创建一个异步任务CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> {...
下面这个例子使用前面 #1 的完成的CompletableFuture, #1返回结果为字符串message,然后应用一个函数把它变成大写字母。 static void thenApplyExample() { CompletableFuture cf=CompletableFuturepletedFuture("message").thenApply(s -> { assertFalse(Thread.currentThread().isDaemon()); return s.toUpperCase(); })...
Java8 CompletableFuture packagecom.example.cesium.utils;importjava.util.concurrent.CompletableFuture;importjava.util.concurrent.ForkJoinPool;publicclassCompletableFutureDemo {publicstaticvoidmain(String[] args) {//doSupplyAsync();//开启一个带返回值的异步任务 --- 小白在打王者和厨师做饭 应该为并行操作//...
Java 8 有大量的新特性和增强如Lambda 表达式,Streams,CompletableFuture等。在本篇文章中我将详细解释清楚CompletableFuture以及它所有方法的使用。 什么是CompletableFuture? 在Java中CompletableFuture用于异步编程,异步编程是编写非阻塞的代码,运行的任务在一个单独的线程,与主线程隔离,并且会通知主线程它的进度,成功或者...
通过example来看一下具体的使用 CompletableFuture的主要方法 1. CompletableFuture 提供了四个静态方法来创建一个异步操作。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 public static CompletableFuture<Void> runAsync(Runnable runnable) public static CompletableFuture<Void> runAsync(Runnable runnable, ...
importjava.util.concurrent.CompletableFuture;publicclassCompletableFutureComposeExample{publicstaticvoidmain(String[]args){CompletableFuture<String>future1=CompletableFuture.supplyAsync(()->"Hello");CompletableFuture<String>future2=future1.thenCompose(result->CompletableFuture.supplyAsync(()->result+", Completable...
importjava.util.Arrays;importjava.util.List;importjava.util.concurrent.CompletableFuture;importjava.util.stream.Collectors;importjava.util.stream.Stream;publicclassStreamCompletableFutureExample{publicstaticvoidmain(String[]args){int[]numbers={1,2,3,4,5};Stream<Integer>numberStream=Arrays.stream(numbers)...
importjava.util.concurrent.Executor; importjava.util.concurrent.Executors; publicclassMain { publicstaticvoidmain(String[] args) { // Example 1: Simple CompletableFuture CompletableFuture<String> future = CompletableFuture.supplyAsync(() ->"Hello") ...