Polymorphism sample In C++ Language

Polymorphism is a function call which can refer to the function which differ according to the type of object to be passed into the function that called it. In C + + can be reached by using virtual functions.

Virtual function is a function that is declared as virtual in class parent and redefined in a derived class or more. To declare a virtual function in the parent class, you simply adding the virtual keyword.

 see the code :

#include <iostream.h>
using namespace std;

int size(int x);
int size(int a, int b);
int main(){
 cout << "Size of a square with side 5: " << size(5);
 cout << '\n';
 cout << "Size of rectangle of with sides 5,4: " << size(5,4) << endl;
 return 0;
}
int size(int x){
 return (x*x);
}
int size(int a, int b){
 return (a*b);
}