hello/java/samples/multithread/ping-pong/PingPong.java

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package mt;

/**
 *
 * @author (C)Y.D.Zakovryashin, 09.01.2023
 */
public class PingPong implements Runnable {

    public static final int ROUND = 10;
    private String name;
    private int delay;
    private Ball ball;

    public PingPong(String name, int delay, Ball ball) {
        this.name = name;
        this.delay = delay;
        this.ball = ball;
    }

    public static void main(String[] args) throws InterruptedException {
        Ball ball = new Ball();
        PingPong gamer1 = new PingPong("ping", 300, ball);
        PingPong gamer2 = new PingPong("pong", 500, ball);

        Thread t1 = new Thread(gamer1);
        Thread t2 = new Thread(gamer2);

        System.out.println("Start game...");
        t1.start();
        t2.start();
        try {
            t1.join(8000);
            t2.join(8000);
            synchronized (ball) {
                ball.notifyAll();
            }
        } catch (InterruptedException e) {
            System.out.println("Error: " + e.getMessage());
        }
        System.out.println("End over.");
    }

    @Override
    public void run() {
        for (int i = 0; i < ROUND; ++i) {
            ball.hit(name, delay);
        }
    }
}