java中使用线程的列表中的数字总和

import java.util.ArrayList;
import java.util.List;

public class ThreadSumExample {
    public static void main(String[] args) {
        List<Thread> threadList = new ArrayList<>();
        int sum = 0;

        // 创建线程列表和共享的总和变量
        for (int i = 0; i < 10; i++) {
            final int start = i * 10 + 1;
            final int end = (i + 1) * 10;

            Thread thread = new Thread(() -> {
                int partialSum = 0;
                for (int j = start; j <= end; j++) {
                    partialSum += j;
                }
                synchronized (ThreadSumExample.class) {
                    sum += partialSum;
                }
            });

            threadList.add(thread);
        }

        // 启动线程
        for (Thread thread : threadList) {
            thread.start();
        }

        // 等待线程执行完毕
        for (Thread thread : threadList) {
            try {
                thread.join();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

        // 输出总和
        System.out.println("线程列表中数字的总和为：" + sum);
    }
}