// A sample program to explore a variety of data types.
//
// This program declares several variables of varying types, and makes
// some initial assignments to the value of the underlying objects using
// the syntax of "constants" (aka "literals") of the given data types.
//
// Author: Michael H. Goldwasser
// Date:   18 January 2005

#include <iostream>

#include <string>      // the 'string' type is not truly built-in, but
using namespace std;   // rather is previously defined in a set of
                       // standard libraries that can be used with
                       // C++.  These two lines inform that compiler
                       // that we wish to use the string class which
                       // is defined in such a library.


int main() {

  //  Example of some declarations
  short       sectionNumber;
  int         populationUS;
  long        nationalDebt;
  float       pi;
  double      acceleration;
  char        firstInitial;
  string      name;


  //  Example of some assignments to these variables
  sectionNumber = 38;
  populationUS  = 295279654;
  nationalDebt =  7599584015246;      // As of 14 Jan 2005 (rounded to nearest dollar)
  pi = 3.141592653589793;
  acceleration = 6.67E-11;
  firstInitial = 'M';                 // Note the use of single-quote punctuation
  name = "Michael H. Goldwasser";     // Note the use of double-quote punctuation

}