// outputs are greeting, demonstrates the use of a predicate
// Mikhail Nesterenko
// 9/26/2013

#include <iostream>

using std::cout; using std::endl; using std::cin; 

bool again(){
    cout << "Again: [y/n] ";
    char answer;
    cin >> answer;
    if (answer == 'y')
      return true;
    else
      return false;
}


int main(){
  do
    cout << "Hello, World!\n";
  while(again());
}