//header file(.h)

//Implement function headers

#pragma once

​

class Rectangle

{

private:

    float length;

    float width;

public:

    //constructor

    Rectangle();

​

    //setters

    void setLength(float l);

    void setWidth(float w);

​

    //getters

    float getLength();

    float getWidth();

​

    //Calculating area

    float area(float length, float width);

​

    //print

    void print();

};

​

//(.cpp) file

//Function definations

#include <iostream>

#include "Rectangle.h"

​

using namespace std;

​

//constructor

Rectangle::Rectangle() {

    length = width = 0;

}

​

//setters

void Rectangle::setLength(float l) {

    length = l;

}

void Rectangle::setWidth(float w) {

    width = w;

}

​

//getters

float Rectangle::getLength() {

    return length;

}

float Rectangle::getWidth() {

    return width;

}

​

//Calculating area

float Rectangle::area(float length, float width) {

    float a = (float)length * width;

    return a;

}

 //print

void Rectangle::print() {

    cout << "Length= " << getLength() << endl;

    cout << "Width= " << getWidth() << endl;

    cout << "Area= " << area(length, width) << endl;

}

​

//main .cpp file

#include <iostream>

#include "Rectangle.h"

​

using namespace std;

​

int main() {

    float length, width;

    Rectangle rectangle;

    cout << "Enter length of the rectangle: ";

    cin >> length;

    cout << "Enter width of the rectangle: ";

    cin >> width;

    rectangle.setLength(length);

    rectangle.setWidth(width);

    rectangle.print();

}

​