Question

1. Define a class Rectangle with two attributes: (This is for C++)

-length, an integer (default value 1)

-width, an integer (default value 1)

Provide the following member functions:

-default constructor

-constructor that takes parameters used to initialize the data

-get/set function for each attribute

-a function perimeter that returns the perimeter of the rectangle

-a function area that returns the area of the rectangle

b. Write a program that uses the class Rectangle to create two rectangle objects with user input dimensions. The program compares the perimeters of the two rectangles and prints to the screen the area of the rectangle with the smallest perimeter (pick arbitrarily, if they are equal).

Answer 1

Please refer to the code screenshots

Program code to copy

#include <iostream>

using namespace std;

class Rectangle{
   public:
  
       // attributes
       int length;
       int width;
      
       // constructor
       Rectangle(){
           // setting default values
           length = 1;
           width = 1;
       }
      
       // set function for length
       void setLength(int l){
           length = l;
       }
      
       // set function for width
       void setWidth(int w){
           width = w;
       }
      
       // get function for length
       int getLength(){
           return length;
       }
      
      
       // get function for width
       int getWidth(){
           return width;
       }
      
       // function to calculate perimeter
       int perimeter(){
           int p = 2 * (length + width);
           return p;
       }
      
       // function to calculate area
       int area(){
           int a = length * width;
           return a;
       }
};

int main(){
   // declaring two rectangles
   Rectangle r1, r2;
   int l, w;
   cout<<"Enter length and width for rectangle 1\n";
   cin>>l>>w;
   r1.setLength(l);
   r1.setWidth(w);
  
   cout<<"Enter length and width for rectangle 2\n";
   cin>>l>>w;
   r2.setLength(l);
   r2.setWidth(w);
  
   // comparing perimenters and displaying area
   if(r1.perimeter() < r2.perimeter()){
       cout<<"Area of rectangle with smallest perimeter is "<<r1.area()<<'\n';
   } else {
       cout<<"Area of rectangle with smallest perimeter is "<<r2.area()<<'\n';
   }
  
   return 0;
}

Program code screenshots

Output