Parameters

Parameters let a method receive values from its caller.

Parameters.cs

using System;

class Program
{
    static int Area(int width, int height)
    {
        return width * height;
    }

    static void Main()
    {
        int width = ;
        int height = 4;
        int area = Area(width, height);

        Console.WriteLine($"width={width}");
        Console.WriteLine($"height={height}");
        Console.WriteLine($"area={area}");
    }
}

using System;

class Program
{
    static int Area(int width, int height)
    {
        return width * height;
    }

    static void Main()
    {
        int width = ;
        int height = 4;
        int area = Area(width, height);

        Console.WriteLine($"width={width}");
        Console.WriteLine($"height={height}");
        Console.WriteLine($"area={area}");
    }
}

using System;

class Program
{
    static int Area(int width, int height)
    {
        return width * height;
    }

    static void Main()
    {
        int width = ;
        int height = 4;
        int area = Area(width, height);

        Console.WriteLine($"width={width}");
        Console.WriteLine($"height={height}");
        Console.WriteLine($"area={area}");
    }
}

parameter A parameter is a named input inside a method.