// Citizen.cpp - wdg - 2009
#include <iostream>
#include <string>
using namespace std;

class Citizen
{
  public:
    static const int DRINKING_AGE=21; 

    // constructors
    Citizen() : name("UNKNOWN"), age(0)
    {}

    Citizen(string nam, int ag) : name(nam), age(ag)
    {}

    //mutators
    void setName(string nam) 
    {
      name = nam;
    }

    void setAge(int ag)
    {
      age = ag;
    }

    //accessors
    string getName() const
    {
      return name;
    }

    int getAge() const
    {
      return age;
    }

    bool canDrink() const
    {
      return (age>=DRINKING_AGE);
    }

  private:
    string name;
    int age;
};


int main( ) 
{
  Citizen one;
  one.setName("GI Joe");
  one.setAge(50);
  Citizen two("Barbie",13);

  cout << "The drinking age is " << Citizen::DRINKING_AGE << endl;
  cout << one.getName();
  if ( one.canDrink() )
    cout << " can drink\n";
  else
    cout << " can't drink\n";

  cout << two.getName();
  if ( two.canDrink() )
    cout << " can drink\n";
  else
    cout << " can't drink\n";

  return 0;
}