Classe:
public class Rectangle
{
public double Height { get; set; }
public double Width { get; set; }
public Rectangle(double height, double width)
{
Height = height;
Width = width;
}
public double CalculateArea()
{
double area = Height * Width;
return area;
}
}
Instância:
Rectangle rectangle = new Rectangle(5, 8);
double area = rectangle.CalculateArea();
Console.WriteLine($"Area of the Rectangle: {area}");