用Java的线程池功能实现石头剪刀布

以下是使用Java线程池功能实现石头剪刀布游戏的示例代码：

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

public class RockPaperScissorsGame {
    private static final int NUM_PLAYERS = 2;

    public static void main(String[] args) {
        ExecutorService executor = Executors.newFixedThreadPool(NUM_PLAYERS);

        for (int i = 0; i < NUM_PLAYERS; i++) {
            executor.execute(new Player(i));
        }

        executor.shutdown();
    }

    static class Player implements Runnable {
        private static final String[] CHOICES = {"石头", "剪刀", "布"};
        private int playerId;

        public Player(int playerId) {
            this.playerId = playerId;
        }

        @Override
        public void run() {
            Random random = new Random();
            int choiceIndex = random.nextInt(CHOICES.length);
            String choice = CHOICES[choiceIndex];

            System.out.println("玩家 " + playerId + " 出的是：" + choice);
        }
    }
}

这个示例中，我们使用了Java的线程池功能来创建一个固定大小的线程池。然后，我们创建了两个玩家线程，每个玩家线程都会随机选择石头、剪刀或布，并输出选择结果。