Example-1 CallableDemo1.java package com.concretepage; import java.util.concurrent.Callable; import java.util.concurrent.ExecutionException; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import java.util.concurrent.Future; import java.util.concurrent.TimeUnit; public...
importjava.util.concurrent.Callable;importjava.util.concurrent.FutureTask;publicclassCallableExampleimplemen...
下面是一个使用Future和Callable的例子: importjava.util.concurrent.*;publicclassFutureAndCallableExample{publicstaticvoidmain(String[] args)throwsExecutionException, InterruptedException {ExecutorServiceexecutor=Executors.newSingleThreadExecutor(); Future<Integer> future = executor.submit(newCallable<Integer>() {@...
Exceptioninthread"main"java.util.concurrent.CancellationException at java.util.concurrent.FutureTask.report(FutureTask.java:121) at java.util.concurrent.FutureTask.get(FutureTask.java:192) atFutureCancelExample.main(FutureCancelExample.java:34) 如果你运行上面的程序,它会抛出一个异常,因为如果任务被取消,futu...
2. Java Callable Future Example In this example, we are executing a task that returns its name when it’s completed. We will useExecutorServiceto execute this task and print its name inmainthread after it has been completed. TheFuture.get()is used for blocking the main thread execution unti...
executor.shutdownNow(); } } In this example, theCallableTestclass has to implement the Callable interface. If you liked this post, feel free to connect onLinkedIn. Published on Java Code Geeks with permission by Aayush, partner at our
I'm trying to detect charuco markers with EmguCV and I've copied and rewritten the example from the OpenCV website. My code looks as follows: At the ArucoInvoke.InterpolateCornersCharuco method I get ... Why used axios in vue.js with typescript error “ element implicitly has type 'any...
Java并发编程:Callable、Future和FutureTask在前面的文章中我们讲述了创建线程的2种方式,一种是直接继承Thread,另外一种就是实现Runnable接口。这2种方式都有一个缺陷就是:在执行完任务之后无法获取执行结果。如果需要获取执行结果,就必须通过共享变量或者使用线程通信的方式来达到效果,这样使用起来就比较麻烦。而自从Java ...
展开阅读全文Callable，直译过来就是“可调用的”，在Java中，它是一个接口，定义在java.util....
areandmethods to find out the current status of associated Callable task. Here is a simple example of Java Callable task that returns the name of thread executing the task after one second. We are usingto execute 100 tasks in parallel and use Java Future to get the result of the submitted...