CSCI 3110

Inheritance Exercises

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1. What is an appropriate inheritance hierarchy between the following objects (who inherits from who?):
   • Employee
   • Cashier
   • Manager
2. Brainstorm other examples of multiple objects that would fit into an inheritance hierarchy. Share them with your neighbor(s).
3. Given the code below, add a Circle class that inherits from Shape and has a single private data member double m_Radius and a method void setRadius(double r) (which sets m_Area). Are there any changes that should be made to the Shape class?

   #include <iostream>
   using std::cout;
   
   class Shape {
   private:
       double m_Area;
   public:
       Shape(): m_Area(0.0) { }
       Shape( double area) : m_Area( area) { }
       void setArea( double a){ m_Area = a; }
       double getArea(){ return m_Area; }
   };
   
   int main(){
       Circle cir;
       cir.setRadius(5.0);
       cir.print();
       return 0;
   }
   

4. Share with a neighbor 3 examples for each of the following relationships:
   • Public inheritance ("is a")
   • Private inheritance ("as a")

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