c++ program for factorial using class

c++ program for factorial using class

Output:

enter the value of n:
5
the factorial of 5 is 120

Implementation:

#include <iostream> using namespace std; class factorial { int fact=1,n; public: void findfact(); void displayres(); }; void factorial::findfact() { cout<<"enter the value of n:"<<endl; cin>>n; int i=2; while(i<=n) { fact*=i; i++; } } void factorial::displayres() { cout<<"the factorial of "<<n<<" is "<<fact<<endl; } int main() { factorial obj; obj.findfact(); obj.displayres(); return 0; }