在java中并行运行固定数量的线程

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class ParallelExecution {
    public static void main(String[] args) {
        // 创建一个固定大小的线程池，最多同时运行3个线程
        ExecutorService executor = Executors.newFixedThreadPool(3);

        // 提交任务到线程池
        for (int i = 0; i < 10; i++) {
            final int taskId = i;
            executor.submit(new Runnable() {
                public void run() {
                    System.out.println("Task " + taskId + " is running.");
                    // 执行任务的代码逻辑
                }
            });
        }

        // 关闭线程池
        executor.shutdown();
    }
}