Activity Brief: Timer Reminder System Using Events

Objective:

Create a simple console application where users can set reminders for specific intervals. The system uses events to notify the user when a timer expires. This activity is designed to be completed in a few hours and provides hands$-$on experience with event$-$driven programming.

Scenario:

Imagine a basic timer system where a user can set reminders. For example, a user sets a $5-$second timer to remind them to check the oven. Once the timer expires, the system triggers an event to notify the user.

You will implement this reminder system using events.

Requirements:

Create a Timer Class:

The Timer class should:

Allow a user to set a time interval $($in seconds$).$Start counting down asynchronously $($e$.$g$.,$ using a Task or Thread$).$Trigger an event TimerExpired when the countdown reaches zero.

Define the Event:

The TimerExpired event should include a message that informs the user the timer has expired, along with the name of the timer $($e$.$g$.,$ "Reminder: Check the oven timer has expired!"$).$

Implement a User Class:

The User class should:

Subscribe to the TimerExpired event.Print the reminder message to the console when the event is triggered.

Simulate the System:

In the console interface:

Allow the user to create multiple timers by providing a name and interval.Start the timers immediately.Notify the user as each timer expires. can you please code this in C# windows form application code including the designer files and logic.