Question: Needs to be in C# Write a countdown alarm clock program that uses delegates to notify anyone who is interested that the designated amount of
Needs to be in C#
Write a countdown alarm clock program that uses delegates to notify anyone who is interested that the designated amount of time has passed. Youll need a class to simulate the countdown clock that accepts a message and a number of seconds to wait (supplied by caller). After waiting the appropriate amount of time, the countdown clock should call the delegate and pass the message to any registered observers. (When you're calculating the time to wait, remember that Thread.Sleep() takes an argument in milliseconds, and requires a using System.Threading statement.) Your countdown clock class should contain a way to create and set the clock appropriate data, a way to start the alarm clock running, a way to pause the alarm clock, a way to resume the countdown, and a way to abort the alarm clock. Create an observer class that echoes the received message to the console. Be certain that the event can be published to multiple handlers safely. Create a driver that demonstrates your program using at least 3-4 observers along with at least 2-3 different usages of the alarm clock with times in the range 3-10 seconds. Be certain that your driver demonstrates the complete functionality of your alarm clock by exercising each of its methods at least once.
I need the pause, stop, start options in my program. Heres what I have so far.
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace CountDown
{
public class countDownclock : EventArgs
{
//declare variables
public int timeLeft;
//Constuctor
public countDownclock(int timeLeft)
{
this.timeLeft = timeLeft;
}
}
public class Clock
{
//create local variables
private int timeLeft;
//constructor
public Clock(int timeLeft)
{
this.timeLeft = timeLeft;
}
//method declaration
public delegate void SecondChangedHandler(object theClock, countDownclock countDownLeft);
public SecondChangedHandler SecondChanged;
public void Run()
{
while (this.timeLeft >= 0)
{
countDownclock countDownLeft = new countDownclock(this.timeLeft);
if (SecondChanged != null)
{
SecondChanged(this, countDownLeft);
}
Thread.Sleep(1000);
this.timeLeft--;
}
}
}
//
public class DisplayCountDown
{
//count the number of seconds changed when each second left
public void Subscibe(Clock theClock)
{
theClock.SecondChanged += CountdownTimeLeft;
}
//Display message for every second
public void CountdownTimeLeft(object theClock, countDownclock ti)
{
Console.WriteLine("TimeLeft: {0}", ti.timeLeft.ToString());
}
}
public class TimesUp
{
//Implement the method Subscribe
public void Subscibe(Clock theClock)
{
theClock.SecondChanged += TimesUpCode;
}
//Implement the the method TimesUpCode
public void TimesUpCode(object theClock, countDownclock ti)
{
//If the remaining seconds in 0,Then print the message
if (ti.timeLeft > 0)
{
Console.WriteLine("Times up!");
}
}
}
// Create a class named 'Observer' to test the program.
public class Observer
{
//implement the Run method
public void Run()
{
//Read the number of seconds
int seconds = Convert.ToInt32(Console.ReadLine());
//Instantiate the class
Clock theClock = new Clock(seconds);
//Declare object for
DisplayCountDown countdownObject = new DisplayCountDown();
//call to subscribe
countdownObject.Subscibe(theClock);
//create object for the Launcher class
TimesUp TimesUpObject = new TimesUp();
//call the method with the object
TimesUpObject.Subscibe(theClock);
//call the Run method
theClock.Run();
}
}
class Program
{
static Main(args a)
{
CountDownclock cdc = new CountDownclock();
If(key.Pressed == "p"){
cdc.Pause();
}
If(key.Pressed == "s"){
cdc.Stop();
}
}
}
// Create a class named 'Driver' to execute the program.
class Driver
{
//main method
public static void Main()
{
//Create object for the class
Observer timerobject = new Observer();
//call the Run method
timerobject.Run();
Console.Read();
}
}
}
CountDown class
namespace CountDown
{
internal class CountDownclock
{
class CountdownClock
{
void Stop()
{
}
void Pause()
{
}
}
}
}
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