Hello World Program

#include <iostream> //it makes sure the header files that contain all the functions of the program are included.

using namespace std;//it declares that we are using the special commands and  variables found in std

int main() { //primary function that runs the program

  cout <<"Hello World!"<< endl; //prints the words in quotes

  return 0; //exits program

}

OUTPUT:

[cms-opendata@localhost src]$ ./a.out

Hello World!