Event

using System;

public class EventPublisher

{

    // Step 1: Define a delegate

    public delegate void MyEventHandler(string message);

    // Step 2: Define an event using the delegate

    public event MyEventHandler MyEvent;

    public void RaiseEvent()

    {

        if (MyEvent != null) // Ensure there are subscribers before invoking

        {

            MyEvent("Event triggered successfully!");

        }

    }

}

public class EventSubscriber

{

    public void HandleEvent(string message)

    {

        Console.WriteLine("Subscriber received: " + message);

    }

}

class Program

{

    static void Main()

    {

        EventPublisher publisher = new EventPublisher();

        EventSubscriber subscriber = new EventSubscriber();

        // Step 3: Subscribe the method to the event

        publisher.MyEvent += subscriber.HandleEvent;

        // Step 4: Trigger the event

        publisher.RaiseEvent();

    }

}