Case of use of the Moar Concurrent framework in the Java class library
Moar Concurrent is a concurrent framework in the Java class library, providing some powerful tools and methods to handle concurrent tasks.This framework can help developers better use multi -core processors and multi -threaded to improve the performance and efficiency of applications.
Case: Use the Moar Concurrent framework for concurrent task processing
Suppose we have a demand to calculate the average of all elements in an array.Due to the large array, we hope that this task can be parallel to speed up the calculation speed.Below is an example code using the Moar Concurrent framework:
import java.util.Arrays;
import java.util.concurrent.*;
public class ConcurrentAverageCalculation {
public static void main(String[] args) throws InterruptedException, ExecutionException {
int[] numbers = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
ExecutorService executor = Executors.newFixedThreadPool(4);
// Create a computing task
Callable<Double> calculationTask = () -> {
double sum = Arrays.stream(numbers).sum();
return sum / numbers.length;
};
// Submit multiple tasks to thread pool
int numberOfTasks = 4;
CompletableFuture<Double>[] futures = new CompletableFuture[numberOfTasks];
for (int i = 0; i < numberOfTasks; i++) {
futures[i] = CompletableFuture.supplyAsync(calculationTask, executor);
}
// Waiting for all tasks to complete and calculate the average
double sum = 0;
for (CompletableFuture<Double> future : futures) {
sum += future.get();
}
double average = sum / numberOfTasks;
System.out.println("The average is: " + average);
executor.shutdown();
}
}
In this case, we used the `ExecutorService` to create a thread pool with a fixed thread pool size of 4.We define a `CalculationTask`, which is a` CalLABLE` function for calculating the average value of the given array.Then, we use the `completeableFUTUTUTUTURUTURE`` Supplyasync` method to submit the calculation task to the thread pool, and get an instance of `CompletableFuture.
Then, we created a `CompletableFuture` array` Futures` to preserve the results of each task.By using the `Futures` array, we can wait for all tasks to complete and get their results.Finally, we add the results of all tasks to calculate the average of the array with the number of tasks.
By using the Moar Concurrent framework, we can easily handle tasks in parallel to improve the application efficiency of the application.
I hope this article will help you understand the case of the Moar Concurrent framework.