Java中JUC 的 Exchange 交换器详情

import java.time.LocalDateTime;
import java.util.concurrent.Exchanger;
public class ExchangeExample {
    // 创建一个交互器
    private final static Exchanger<String> exchange = new Exchanger<>();
    public static void main(String[] args) {
        // 线程 1【准备钱】
        new Thread(() -> {
            System.out.println("线程1：准备筹钱中...| Time：" + LocalDateTime.now());
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            String moeny = "1000 万";
            System.out.println("线程1：钱准备好了【1000 万】。| Time：" + 
                               LocalDateTime.now());
            try {
                // 执行数据交换【交易】
                String result = exchange.exchange(moeny);
                System.out.println("线程1：交易完成，得到【" + result +
                        "】 | Time：" + LocalDateTime.now());
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }).start();
        // 线程 2【准备货】
        new Thread(() -> {
            System.out.println("线程2：准备物品中【西伯利亚新鲜空气】...| Time：" + 
                               LocalDateTime.now());
            try {
                Thread.sleep(3000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            String goods = "西伯利亚新鲜空气";
            System.out.println("线程2：物品准备好了【西伯利亚新鲜空气】。| Time：" + 
                               LocalDateTime.now());
            try {
                // 执行数据交换【交易】
                String result = exchange.exchange(goods);
                System.out.println("线程2：交易完成，得到【" + result +
                        "】 | Time：" + LocalDateTime.now());
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }).start();
    }
}