//Getter/Setter Example
//Demonstrates setting member access levels

#include <iostream>

using namespace std;

class Critter
{
    public:            // begin public section
    Critter(int hunger = 0);
    int GetHunger() const; 
    void SetHunger(int hunger);
    
    private:           // begin private section
    int m_Hunger;
};

Critter::Critter(int hunger)  // constructor definition
{
    m_Hunger = hunger;
    cout << "A new critter has been born!" << endl;
}

int Critter::GetHunger() const //getter function
{
    return m_Hunger;
}

void Critter::SetHunger(int hunger) //setter function
{
    if (hunger < 0)
    {
        cout << "You can't set a critter's hunger to a negative number.\n\n";
    }
    
    else
    {
        m_Hunger = hunger;
    }
}

int main()
{
    Critter crit(5);  
    //cout << crit.m_Hunger; -- illegal, m_Hunger is private!
    cout << "Calling GetHunger(): " << crit.GetHunger() << "\n\n";
   
    cout << "Calling SetHunger() with -1.\n";
    crit.SetHunger(-1);
    
    cout << "Calling SetHunger() with 9.\n";    
    crit.SetHunger(9);
    cout << "Calling GetHunger(): " << crit.GetHunger() << "\n\n";
    
    system("PAUSE");
    
    return 0;
}