C++ Tutorial/Language Basics/main function
A C++ program begins at main()
#include <iostream> 
using namespace std; 
 
 
int main() 
{ 
  cout << "www.java2s.com"; 
 
  return 0; 
}www.java2s.com"
Call a function in main
#include <iostream>
 
 void DemonstrationFunction()
 {
     std::cout << "In Demonstration Function\n";
 }
 
 int main()
 {
     std::cout << "In main\n" ;
     DemonstrationFunction();
     std::cout << "Back in main\n";
     return 0;
 }In main In Demonstration Function Back in main
