Question

Need solution in c++ that works on both Microsoft Visual 2017 and Xcode:

Create a class Rectangle with attributes length and width, each of which defaults to 1. Provide methods that calculate the rectangle's perimeter and area. It has set and get methods for both length and width. The set methods should verify that length and width are each floating-point number larger than 0.0 and less than 20.0. Write a program to test class Rectangle

Answer 1

Hey following snippet of code provides the required;

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#include<iostream>
#include<conio.h>
class rec
{
      private:
                   float l,b;
      public:
                   rec()
                 {
                          l=b=1;
                  }
                
                  rec(float a,float c)
                 {
                            l=a;
                            b=c;
                  }
                  void setLength(float a)
                  {
                    if(a > 0 && a < 20)
                      l = a;
                  }
                  void setBreadth(float c)
                  {
                      if(c > 0 && c < 20)
                        b = c;
                  }
                  float getLength(){
                      return l;
                  }
                  float getBreadth(){
                      return b;
                  }
                  float area()
                 {
                            return (l*b);
                  }
                  float perimeter()
                  {
                      return (2*(l+b));
                  }
};
         void main()
      {
             clrscr();
             rec obj1;
             cout<<"Perimeter of First Rectangle: "<<obj1.perimeter() <<endl;
             obj1.getLength();
             rec obj2(3,5);
             cout<<"Area of Rectangle: "<<obj2.area()<<endl;
             obj2.setLength(28);
             rec obj3(7,7);
             obj3.setBreadth(10);
             cout<<"Area of Third Rectangle: "<<obj3.area()<<endl;
             getch();
       }

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