Now the Stringsreferences a new String object that contains "abc". The String class's methods never affect the data that a String object contains. For an object to be immutable, there has to be no way to change fields, mutable or not, and to access fields that are mutable. Here is an...
java.lang.Object java.util.concurrent.CompletableFuture<T> All Implemented Interfaces: CompletionStage<T>, Future<T> public class CompletableFuture<T> extends Object implements Future<T>, CompletionStage<T> A Future that may be explicitly completed (setting its value and status), and may be used ...
publicclassFutureTask<T>implementsFuture<T>{//计算结果privateTresult;//任务是否完成privateboolean isDone=false;//定义对象锁privatefinal ObjectLOCK=newObject();@OverridepublicTget()throws InterruptedException{synchronized(LOCK){//当任务还没完成时,调用get方法会被挂起而进入阻塞while(!isDone){LocK.wait()...
Suppose you want to execute some code that queries a database so the code is executed in a separate thread and then trigger the printing of the query result when it is available. Using a well-known pattern introduced in Java 5, you could wrap the task to be executed in a Callable, and...
javafutureget方法 阻塞当前线程 java线程阻塞的解决方法 如图所示,一个对象object调用wait()方法则像是堵了一扇门。线程一、线程二都将阻塞,然后线程三调用object的notify()方法打开门,准确地说是调用了notifyAll()方法,notify()仅仅能让线程一或线程二其中一条线程通过)。最终线程一、线程二得以通过。
运行 AI代码解释 FunctionalInterfacepublicinterfaceRunnable{/** * When an object implementing interface <code>Runnable</code> is used * to create a thread, starting the thread causes the object's * <code>run</code> method to be called in that separately executing ...
CompletableFuture<Object> future2 = CompletableFuture.supplyAsync(() -> { System.out.println("任务2线程:" + Thread.currentThread().getId()); System.out.println("任务2运行结果:"); return "hello"; }, executor); CompletableFuture<String> applyToEitherAsync = future1.applyToEitherAsync(future2...
24CompletableFuture<Object> f =CompletableFuture.anyOf(future1, future2);25System.out.println(f.get());2627//执行结果28abc 三、编排任务的时候,依赖的服务可能出现异常的情况处理 举个例子:现在将A、B、C、D这四个任务做编排组合,其中A依赖于B,其结果与C、D并行。
static CompletableFuture<Object>CompletableFuture.anyOf(CompletableFuture<?>... cfs)指定されたいずれかのCompletableFutureが完了したときに同じ結果で完了する新しいCompletableFutureを返します。<U> CompletableFuture<U>CompletableFuture.applyToEither(CompletionStage<? extends T> other, Function<? s...
命名空间: Java.Util.Concurrent 程序集: Mono.Android.dll 强制设置或重置方法 #get() 及其相关方法随后返回的值,无论是否已完成。 C# 复制 [Android.Runtime.Register("obtrudeValue", "(Ljava/lang/Object;)V", "GetObtrudeValue_Ljava_lang_Object_Handler", ApiSince=24)] public virtual void Obtrude...