如何通过多个线程成功访问和循环ArrayList？

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

public class SafeArrayListAccess {

    public static void main(String[] args) {
        List<String> list = Collections.synchronizedList(new ArrayList<>());

        // 添加一些元素到列表中
        list.add("Element 1");
        list.add("Element 2");
        list.add("Element 3");

        // 创建一个线程，用于执行循环操作
        Thread loopThread = new Thread(() -> {
            for (int i = 0; i < 10; i++) {
                synchronized (list) {
                    for (String element : list) {
                        System.out.println("Element: " + element);
                    }
                }
            }
        });

        // 创建一个线程，用于向列表中添加元素
        Thread addThread = new Thread(() -> {
            for (int i = 0; i < 10; i++) {
                synchronized (list) {
                    list.add("New Element " + (i + 1));
                }
            }
        });

        // 启动线程
        loopThread.start();
        addThread.start();

        // 等待线程结束
        try {
            loopThread.join();
            addThread.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}