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C++ Program to find Area of Rectangle using constructor

robaa
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2022-11-26
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Write a C++ Program to find Area of Rectangle using constructor. Here’s a Simple Program to find Area of Rectangle using constructor in C++ Programming Language.

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robaa
2022-11-26
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What is Class and Objects in C++?

  • Class is a user defined data type, which holds its own data members and member functions, which can be accessed and used by creating instance of that class.
  • The variables inside class definition are called as data members and the functions are called member functions.
  • Class is just a blue print, which declares and defines characteristics and behavior, namely data members and member functions respectively. And all objects of this class will share these characteristics and behavior.
  • Objects are instances of class, which holds the data variables declared in class and the member functions work on these class objects.
  • Each object has different data variables. Objects are initialized using special class functions called Constructors.

Below is the source code for C++ Program to find Area of Rectangle using constructor which is successfully compiled and run on Windows System to produce desired output as shown below :

 
 

SOURCE CODE : :

/*  C++ Program to find Area of Rectangle using constructor  */

#include <iostream>
using namespace std;

class CRectArea
{
    private:
        int length;
        int breadth;
    public:
        CRectArea (int,int);

        int areaofrect ()
        {
            return (length * breadth);
        }
        int length1()
        {
            return length;
        }

        int breadth1()
        {
            return breadth;
        }
};


CRectArea::CRectArea(int x, int y)
{
    length = x;
    breadth = y;
}


int main ()
{
    CRectArea myrectangle (2,2);

    cout<<"The Length of Rectangle :: "<<myrectangle.length1()<<"\n";
    cout<<"\nThe Breadth of Rectangle :: "<<myrectangle.breadth1()<<"\n";
    cout << "\nThe area of rectangle is :: " << myrectangle.areaofrect()<< endl;
    return 0;
}

OUTPUT : :

/*  C++ Program to find Area of Rectangle using constructor  */

The Length of Rectangle :: 2

The Breadth of Rectangle :: 2

The area of rectangle is :: 4

Process returned 0

Above is the source code and output for C++ Program to find Area of Rectangle using constructor which is successfully compiled and run on Windows System to produce desired output.

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