Exercises OOP 1

Exercises 1

Write a program that defines a shape class with a constructor that gives value to width and height. The define two sub-classes triangle and rectangle, that calculate the area of the shape area (). In the main, define two variables a triangle and a rectangle and then call the area() function in this two varibles.

Solution:
#include<iostream>
using namespace std;
class Shape{
    protected: float width, height;
   public:
       void set_data(float a,float b){
        width = a;
       height =b;
}
};
class Rectangle: public Shape{
   public:
   float area(){
    return (width*height);
}
};
class Triangle: public Shape{
   public:
     float area(){
      return (width*height/2);
}
};
int main(){
   Rectangle rect;
   Triangle tri;
   rect.set_data(5,3);
   tri.set_data(2,5);
   cout<<rect.area()<<endl;
   cout<<tri.area()<<endl;
   return 0;
}