Question

C# VISUAL STUDIO CONSOLE App(.NET Framework)

Create an application named ShapesDemo that creates several objects that descend from an abstract class called GeometricFigure. Each GeometricFigure includes a height, a width, and an area. Provide get and set accessors for each field except area; the area is computed and is read-only. Include a method called ComputeArea() that computes the area of the GeometricFigure. Next you will create two additional classes derived from the GeometricFigure class Rectangle and Square.

Answer 1

Program:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ShapesDemo
{

abstract class GeometricFigure
{

public abstract double ComputeArea();
}

class Rectangle : GeometricFigure
{
double height, width,area;
public Rectangle(double height1,double width1)
{
setHeight(height1);
setWidth(width1);
}

public void setHeight(double height1)
{
height = height1;
}
public void setWidth(double width1)
{
width = width1;
}

public double getHeight()
{
return height;
}

public double getWidth()
{
return width;
}
public override double ComputeArea()
{
area= getHeight() * getWidth();
return area;
}
}

class Square : GeometricFigure
{
double width, area;
public Square(double width1)
{
setWidth(width1);
}
public void setWidth(double width1)
{
width = width1;
}

public double getWidth()
{
return width;
}
public override double ComputeArea()
{
area = getWidth() * getWidth();
return area;
}
}
class Program
{
static void Main(string[] args)
{
double height1, width1;
Console.WriteLine("Information of Geometric Figure - Rectangle: ");
Console.WriteLine("*************************************************" +Environment.NewLine);
Console.Write("Enter Height of a Rectangle: ");
height1 = Convert.ToDouble(Console.ReadLine());
Console.Write("Enter Width of a Rectangle: ");
width1 = Convert.ToDouble(Console.ReadLine());
Rectangle rect = new Rectangle(height1,width1);
Console.WriteLine("Area of Rectangle: "+rect.ComputeArea());
  
Console.WriteLine(Environment.NewLine);
Console.WriteLine("Information of Geometric Figure - Square: ");
Console.WriteLine("*************************************************" + Environment.NewLine);
Console.Write("Enter Width of a Square: ");
width1 = Convert.ToDouble(Console.ReadLine());
Square sq = new Square(width1);
Console.WriteLine("Area of Square: " + sq.ComputeArea());

Console.ReadKey();
}
}
}

Output: