Answer to Question #213916 in C++ for Ali Haider

Question

there is no error in main () complete the class Rectangle and its functions.

Int main ()

{

     Rectangle rect1(3.4, 5.68);

     Rectangle rect2(2.4, 4.68);

     if (rect1-- != ++rect2) //increment/decrement will add & subtract by 1 of each data members of class

           cout << ”\n Both are not of same size”;

     else

           cout << ”\n Both are of same size”;

     rect1.show(); \\will display values 2.4, 4.68      

     Rectangle rect3 = rect1 + rect2;

     rect3.show(); \\will display values 5.8, 10.36

     system(“pause”);

     return 0;

}      

Answer 1

#include <iostream>
#include <cstdlib>
using namespace std;
class Rectangle{
    float width, height;
    public:
    Rectangle(){}
    Rectangle(float w, float h): width(w), height(h){}
    Rectangle operator--(int){
        --width;
        --height;
        return *this;
    }
    Rectangle operator++(){
        ++width;
        ++height;
        return *this;
    }
    Rectangle operator+(const Rectangle &other){
        return Rectangle(this->width + other.width, this->height + other.height);
    }
    bool operator!=(const Rectangle &other){
        return !(this->width == other.width && this->height == other.height);
    }
    void show(){
        cout<<endl<<width<<" "<<height<<endl;
    }
};
int main (){
    Rectangle rect1(3.4, 5.68);


    Rectangle rect2(2.4, 4.68);


    if (rect1-- != ++rect2) //increment/decrement will add & subtract by 1 of each data members of class


        cout << "\n Both are not of same size";


    else


        cout << "\n Both are of same size";


    rect1.show(); //will display values 2.4, 4.68      


    Rectangle rect3 = rect1 + rect2;


    rect3.show(); //will display values 5.8, 10.36


    system("pause");


    return 0;
}