在循环中运行多线程的正确方法

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

public class ThreadPoolingExample {
    public static void main(String[] args) {
        // 创建一个固定大小的线程池，大小为5
        ExecutorService executor = Executors.newFixedThreadPool(5);

        for (int i = 0; i < 10; i++) {
            final int taskNumber = i;
            // 提交任务给线程池执行
            executor.execute(new Runnable() {
                public void run() {
                    System.out.println("Task " + taskNumber + " is running.");
                }
            });
        }

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