使用两个线程并发读取arraylist

import java.util.ArrayList;

public class ConcurrentArrayListReading {
    private static ArrayList<Integer> arrayList = new ArrayList<>();

    public static void main(String[] args) {
        // 添加一些元素到ArrayList
        for (int i = 1; i <= 10; i++) {
            arrayList.add(i);
        }

        // 创建两个线程并发读取ArrayList
        Thread thread1 = new Thread(new Runnable() {
            @Override
            public void run() {
                synchronized (arrayList) {
                    for (Integer num : arrayList) {
                        System.out.println("Thread 1: " + num);
                    }
                }
            }
        });

        Thread thread2 = new Thread(new Runnable() {
            @Override
            public void run() {
                synchronized (arrayList) {
                    for (Integer num : arrayList) {
                        System.out.println("Thread 2: " + num);
                    }
                }
            }
        });

        // 启动线程
        thread1.start();
        thread2.start();
    }
}