Answer to Question #213299 in C++ for Hemambar

Question

Create a base class called Shape which has two double type values. Use member functions get()

and set() to get and set the values. Use a virtual function display_area() to display the area. Derive

two specific classes called Triangle and Rectangle from the base class Shape. Redefine

display_area() in the derived classes. Write a program to display the rectangle or triangle area.

Answer 1

#include <iostream>




using namespace std;




class Shape{
    protected:
        float num1;
        float num2;
    public:
        
        void setNum1(float n1){
            num1=n1;
        }
        void setNum2(float n2){
            num2=n2;
        }
        float getNum1(){
            return num1;
        }
        float getNum2(){
            return num2;
        }
        virtual void display_area(){
            cout<<"Area: "<<getNum1()*getNum2()<<endl;
        }
};
class Triangle: public Shape{
    public:
        virtual void display_area(){
            cout<<"Area of the Triangle: "<<0.5*getNum1()*getNum2()<<endl;
        }
    
};
class Rectangle: public Shape{
    public:
    
        virtual void display_area(){
                cout<<"Area  of the Rectangle: "<<getNum1()*getNum2()<<endl;
            }
};
int main()
{
    Triangle t1;
    t1.setNum1(5);
    t1.setNum2(7);
    t1.display_area();




    Rectangle r1;
    r1.setNum1(15);
    r1.setNum2(10);
    r1.display_area();
    return 0;
}