Question

1. The program must be in C# syntax.
2. Write the definition for a generic class called Rectangle that has data members length and width. The class has the following member functions:
   setlength to set the length data member
   setwidth to set the width data member
   perimeter to calculate and return the perimeter of the rectangle
   area to calculate and return the area of the rectangle
   show to return a text to display the length and width of the rectangle
   sameArea that has one parameter of type Rectangle. sameArea returns 1 if the two Rectangles have the same area, and returns 0 if they don't.

Overload the following operators: -

Operators	Description
- (unary)	Length and width will change sign
+	Add bother areas and then find the ratio of the first Rectangle to find the new values of the length and the width
-	Subtract second area from first area and then find the ratio of the first Rectangle to find the new values of the length and the width
*	Multiply first area by second area and then find the ratio of the first Rectangle to find the new values of the length and the width
/	Divide first area by second area and then find the ratio of the first Rectangle to find the new values of the length and the width
<	Compare the areas
>	Compare the areas
<=	Compare the areas
>=	Compare the areas
==	Compare the areas
!=	Compare the areas
=	Assign the length and width to the first Rectangle
+=	Same as + operator and assign the result to the first Rectangle
-=	Same as - operator and assign the result to the first Rectangle
*=	Same as * operator and assign the result to the first Rectangle
/=	Same as / operator and assign the result to the first Rectangle

1. Write the definitions for each of the above member functions.
2. Write main function to create two rectangle pointers. Set the length and width of the first rectangle to 5 and 2. Set the length and width of the second rectangle to 5 and 18.9. Display each rectangle and its area and perimeter.

Check whether the two Rectangles have the same area and print a message indicating the result. Set the length and width of the first rectangle to 15 and 6.3. Display each Rectangle and its area and perimeter again. Again, check whether the two Rectangles have the same area and print a message indicating the result

Answer 1

------------------ I Used Visual Studio 2013, C# Language, Console Application ------------------

------------------ OUTPUT ------------------

file:///C:/Users/krisfo/documents/visual studio 2013/Projects/CSharp_Consol Rectangle 1 :: Length : 5.00 Width : 2.00 Area :

file:///C:/users/krisfo/docum Multiplication :: Length : 48.61 Width : 183.73 Area : 8930.25 Perimeter : 464.67 Division :: L

------------------ CODE ------------------

------------------ Program.cs(Main Method Class) ------------------

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

namespace CSharp_Console_RectangleProject
{
class Program
{
static void Comparison(Rectangle r1, Rectangle r2)
{
Console.WriteLine("\nComparison Operator :: ");
if (r1 == r2)
Console.WriteLine("Rectangle 1 area is equal to Rectangle 2 area");
else if (r1 < r2)
Console.WriteLine("Rectangle 1 area is less than Rectangle 2 area");
else if (r1 > r2)
Console.WriteLine("Rectangle 1 area is greater than Rectangle 2 area");
else if (r1 <= r2)
Console.WriteLine("Rectangle 1 area is less than or equal to Rectangle 2 area");
else if (r1 >= r2)
Console.WriteLine("Rectangle 1 area is greater than or equal to Rectangle 2 area");
else if (r1 != r2)
Console.WriteLine("Rectangle 1 area is not equal to Rectangle 2 area");
}
static void Main(string[] args)
{
Rectangle r1 = new Rectangle();
r1.setLength(5);
r1.setWidth(2);
Rectangle r2 = new Rectangle();
r2.setLength(5);
r2.setWidth(18.9);
Console.WriteLine("Rectangle 1 :: ");
r1.show();

Console.WriteLine("\nRectangle 2 :: ");
r2.show();
  
Program.Comparison(r1, r2);

Console.WriteLine("\nRectangle 1 Modified :: ");
r1.setLength(15);
r1.setWidth(6.3);
r1.show();
  
Program.Comparison(r1, r2);

Console.WriteLine("\nChange Rectangle 2 Sign :: ");
r1 = -r2;
r1.show();

Console.WriteLine("\nAddition :: ");
r1 += r2;
r1.show();

Console.WriteLine("\nSubtraction :: ");
r1 = r2 - r1;
r1.show();

Console.WriteLine("\nMultiplication :: ");
r1 *= r2;
r1.show();

Console.WriteLine("\nDivision :: ");
r1 /= r2;
r1.show();

Console.ReadLine();
}
}
}

------------------ Rectangle.cs ------------------

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

namespace CSharp_Console_RectangleProject
{
class Rectangle
{
double length, width;
public Rectangle()
{
length = 0;
width = 0;
}
public void setLength(double l)
{
length = l;
}

public void setWidth(double w)
{
width = w;
}

public double perimeter()
{
return 2 * (length + width);
}

public double area()
{
return length * width;
}

public void show()
{
Console.WriteLine("Length : " + length.ToString("0.00"));
Console.WriteLine("Width : " + width.ToString("0.00"));
Console.WriteLine("Area : " + area().ToString("0.00"));
Console.WriteLine("Perimeter : " + perimeter().ToString("0.00"));
}

public int sameArea(Rectangle r2)
{
if (area()==r2.area())
{
return 1;
}
return 0;
}

public static Rectangle operator -(Rectangle r)
{
r.length = -r.length;
r.width = -r.width;
return r;
}

public static Rectangle operator +(Rectangle r1, Rectangle r2)
{
Rectangle r3 = new Rectangle();
double newArea = r1.area() + r2.area();
double ratio = r1.length / r1.width;
//To find the width & length of new Rectangle r3
r3.width = Math.Sqrt(newArea / ratio);
r3.length = ratio * r3.width;
return r3;
}

public static Rectangle operator -(Rectangle r1, Rectangle r2)
{
Rectangle r3 = new Rectangle();
double newArea = r2.area() - r1.area();
double ratio = r1.length / r1.width;

r3.width = Math.Sqrt(newArea / ratio);
r3.length = ratio * r3.width;
return r3;
}

public static Rectangle operator *(Rectangle r1, Rectangle r2)
{
Rectangle r3 = new Rectangle();
double newArea = r1.area() * r2.area();
double ratio = r1.length / r1.width;

r3.width = Math.Sqrt(newArea / ratio);
r3.length = ratio * r3.width;
return r3;
}

public static Rectangle operator /(Rectangle r1, Rectangle r2)
{
Rectangle r3 = new Rectangle();
double newArea = r1.area() / r2.area();
double ratio = r1.length / r1.width;

r3.width = Math.Sqrt(newArea / ratio);
r3.length = ratio * r3.width;
return r3;
}

public static bool operator <(Rectangle r1, Rectangle r2)
{
if (r1.area()<r2.area())
{
return true;
}
return false;
}

public static bool operator >(Rectangle r1, Rectangle r2)
{
if (r1.area() > r2.area())
{
return true;
}
return false;
}

public static bool operator <=(Rectangle r1, Rectangle r2)
{
if (r1.area() <= r2.area())
{
return true;
}
return false;
}

public static bool operator >=(Rectangle r1, Rectangle r2)
{
if (r1.area() >= r2.area())
{
return true;
}
return false;
}

public static bool operator ==(Rectangle r1, Rectangle r2)
{
if (r1.area() == r2.area())
{
return true;
}
return false;
}

public static bool operator !=(Rectangle r1, Rectangle r2)
{
if (r1.area() != r2.area())
{
return true;
}
return false;
}

}
}

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