C++ examples for Function:Function Creation
Define two functions in addition to main
#include <iostream> using namespace std; // Functions must be declared before being used. void print_results(double a, double b); double avg(double x, double y); int main()// w ww . ja v a 2 s. com { double a = 0.0; double b = 0.0; cout << "Enter first number and press ENTER: "; cin >> a; cout << "Enter second number and press ENTER: "; cin >> b; // Call the function pr_results(). print_results(a, b); return 0; } // print_results function definition void print_results(double a, double b) { cout << "Average is: " << avg(a, b) << endl; } // Average-number function definition double avg(double x, double y) { return (x + y)/2; }