Classes of .NET With C#

Introduction Classes: Introduction Classes are used to explain basic concepts in programming. For example, if you want to understand the structure of a class in .NET and C#, this could be the initial code.

Code:

using System;

class Introduction

{

    public void DisplayMessage()

    {

        Console.WriteLine("Hello! This is an example of the Introduction Class.");

    }

}

class Program

{

    static void Main(string[] args)

    {

        Introduction intro = new Introduction();

        intro.DisplayMessage();

    }

}

Description:

Code:

using System;

class Addition

{

    public int Add(int a, int b)

    {

        return a + b;

    }

}

class Program

{

    static void Main(string[] args)

    {

        Addition addition = new Addition();

        Console.WriteLine("The sum of two numbers is: " + addition.Add(10, 20));

    }

}

Description:

Class of Factorial: This class is useful for finding the factorial. The meaning of factorial is: n! = n * (n-1) * (n-2) ... * 1

Code:

using System;

class Factorial

{

    public int CalculateFactorial(int n)

    {

        int fact = 1;

        for (int i = 1; i <= n; i++)

        {

            fact *= i;

        }

        return fact;

    }

}

class Program

{

    static void Main(string[] args)

    {

        Factorial factorial = new Factorial();

        Console.WriteLine("Factorial of 5: " + factorial.CalculateFactorial(5));

    }

}

Description:

Radio Class: This class is for controlling the volume and channel of a radio.

Code:

using System;

class Radio

{

    public int Volume { get; set; }

    public string Channel { get; set; }

    public void Play()

    {

        Console.WriteLine($"Playing Channel: {Channel} at Volume: {Volume}");

    }

}

class Program

{

    static void Main(string[] args)

    {

        Radio radio = new Radio();

        radio.Channel = "FM 101";

        radio.Volume = 5;

        radio.Play();

    }

}

Description:

Alarm Class: This class is for setting an alarm.

Code:

using System;

class Alarm

{

    public string Time { get; set; }

    public void SetAlarm(string time)

    {

        Time = time;

        Console.WriteLine($"Alarm has been set for: {Time}");

    }

}

class Program

{

    static void Main(string[] args)

    {

        Alarm alarm = new Alarm();

        alarm.SetAlarm("7:00 AM");

    }

}

Description: