如何在关机后重用线程池

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

public class ThreadPoolDemo {

    private static ExecutorService threadPool;

    public static void main(String[] args) {
        // 创建并初始化线程池
        initThreadPool();

        // 提交任务给线程池
        for (int i = 0; i < 10; i++) {
            threadPool.execute(new Runnable() {
                @Override
                public void run() {
                    System.out.println(Thread.currentThread().getName() + " 执行任务");
                }
            });
        }

        // 销毁线程池
        destroyThreadPool();

        // 重新启动程序后，重用线程池
        // ...
    }

    // 创建并初始化线程池
    public static void initThreadPool() {
        threadPool = Executors.newFixedThreadPool(5);
    }

    // 销毁线程池
    public static void destroyThreadPool() {
        if (threadPool != null) {
            threadPool.shutdown();
        }
    }
}