Let us see the C++ program for finding the factorial of a number using the Multi-level inheritance.
C++ program for factorial using Multi-level inheritance
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#include<iostream> using namespace std; //main class class factorial { public: unsigned long long fact=1; void display(); }; //child of main class class input_factorial: public factorial { public: int num; int input(); }; //child of another child class class fact_function_factorial: public input_factorial { public: void fact_function(); }; int input_factorial::input() { cout<<"Please enter a number: "; cin>>num; } void fact_function_factorial::fact_function() { for(int i=1;i<=num;i++) { fact=fact*i; } } void factorial::display() { cout<<"Factorial of entered number is: "<<fact; } int main() { fact_function_factorial object; object.input(); object.fact_function(); object.display(); } |
Output
