Rectangle Area Solver Using Classes in C++

In this article I would like to share with you a sample program that will compute the area and base of the rectangle using Classes in C++. The code will give you a first hand experience how to create an object, methods and attributes in object oriented programming in C++.

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Thank you very much and Happy Programming.

Sample Program Output

Program Listing

#include <iostream>

 using namespace std;

 class rectangle {

   private:

   float base,height;

   public:

   float area(float b,float h)

    {

       return(b*h);

    }

    float process_data();

    float display_data();

 };

 float rectangle :: process_data()

   {

    cout << "\n";

    cout<<"\t\t AREA OF A RECTANGLE\n";

    cout << "\n";

    cout<<"\nEnter Base   : ";

    cin>>base;

    cout<<"\nEnter Height : ";

    cin>>height;

    cout << "\n\n";

    cout<<"\nArea = "

        <<area(base,height)

        <<" Square Units\n";

    cout << "\n\n";

    system("pause");

   }

   float rectangle :: display_data()

   {

       float math;

       math = process_data();

   }

main() {

    rectangle number;

    number.display_data();

}