Question

Using basic C++( without using <Rectangle.h> )

1. Write the definition for a class called Rectangle that has floating point data members length and width. The class has the following member functions:
   • void setlength(float) to set the length data member
   • void setwidth(float) to set the width data member

• • float perimeter() to calculate and return the perimeter of the rectangle

• • float area() to calculate and return the area of the rectangle

• • void show() to display the length and width of the rectangle

2. Write the definitions for each of the above member functions outside the class.
3. Write client code (main.cpp) to create two rectangle objects. Set the length and width of the first rectangle to 5 and 2.5. Set the length and width of the second rectangle to 7.5 and 12.6. Display each rectangle and its area and perimeter

4. Add a default constructor to your Rectangle class that initializes the length to 1 and the width to 1.
5. Add a constructor to your Rectangle class that has two float parameters. The constructor will initialize the length to the value given in the first parameter, and the width to the value given in the second parameter.
6. Add a member function sameArea that has one parameter of type Rectangle. sameArea returns true if the two Rectangles have the same area, and returns false if they don't.
7. Write client code to create one Rectangle object which is not initialized, and another Rectangle object which is initialized to have length 4 and width 3. 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 2 and 6. 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

Note : Do you want the whole code in single file ...? Could u plz tell me ...so that I will divide the divide the code...thank You

/**********************************************/
#include <iostream>
#include <iomanip>

using namespace std;

class Rectangle
{
private:
float length;
float width;

public:
Rectangle()
{
this->length = 1;
this->width = 1;
}
Rectangle(float l, float w)
{
this->length = l;
this->width = w;
}

void setLength(float l)
{
this->length = l;
}
void setWidth(float w)
{
this->width = w;
}
float perimeter()
{
return 2 * (length + width);
}
float area()
{
return length * width;
}
void show()
{
cout << "Length :" << length << endl;
cout << "Width :" << width << endl;
}

bool sameArea(Rectangle r)
{
if (area() == r.area())
return true;
else
return false;
}
};
int main()
{

// Creating instance of Rectangle class
Rectangle r1(5, 2.5), r2(7.5, 12.6);
cout << "Rectangle#1:" << endl;
r1.show();
// Displaying the area of Rectangle
cout << "Area :" << r1.area() << endl;
// Displaying the perimeter of Rectangle
cout << "Perimeter :" << r1.perimeter() << endl;
cout << "\nRectangle#2:" << endl;
r2.show();
// Displaying the area of Rectangle
cout << "Area :" << r2.area() << endl;
// Displaying the perimeter of Rectangle
cout << "Perimeter :" << r2.perimeter() << endl;

// Creating instance of Rectangle class
Rectangle r3, r4(4, 3);
cout << "Rectangle#3:" << endl;
r3.show();
// Displaying the area of Rectangle
cout << "Area :" << r3.area() << endl;
cout << "Perimeter :" << r3.perimeter() << endl;
cout << "\nRectangle#4:" << endl;
r4.show();
// Displaying the area of Rectangle
cout << "Area :" << r4.area() << endl;
cout << "Perimeter :" << r4.perimeter() << endl;

if (r3.sameArea(r4))
{
cout << "Rectangle#3 and Rectangle#4 have same area" << endl;
}
else
{
cout << "Rectangle#3 and Rectangle#4 have not same area" << endl;
}

r1.setLength(2);
r1.setWidth(6);
cout << "Rectangle#1:" << endl;
r1.show();
cout << "Area :" << r1.area() << endl;
cout << "Perimeter :" << r1.perimeter() << endl;

if (r1.sameArea(r4))
{
cout << "Rectangle#1 and Rectangle#4 have same area" << endl;
}
else
{
cout << "Rectangle#1 and Rectangle#4 have not same area" << endl;
}

return 0;
}

/**************************************************/

/**************************************************/

Output:

/**************************************************/