critter_farm.cpp

来自「the source of dev_c++ most of them for 」· C++ 代码 · 共 53 行

//Critter Farm
//Demonstrates object containment

#include <iostream>
#include <string>
#include <vector>

using namespace std;

class Critter
{
public:

    Critter(const string& name = ""): m_Name(name) {}
    string GetName() const { return m_Name; }  
private:
    string m_Name;
};

class Farm
{
public:
    Farm(int spaces = 1) { m_Critters.reserve(spaces); }
    void Add(const Critter& aCritter) { m_Critters.push_back(aCritter); }
    void RollCall() const
    {
        for (vector<Critter>::const_iterator iter = m_Critters.begin(); 
             iter != m_Critters.end(); ++iter)
            cout << iter->GetName() << " here.\n";
    }
private:
    vector<Critter> m_Critters;
};

int main()
{
    Critter crit("Poochie");
    cout << "My critter's name is " << crit.GetName() << endl; 

    cout << "\nCreating critter farm.\n";
    Farm myFarm(3);
    
    cout << "\nAdding three critters to the farm.\n";
    myFarm.Add(Critter("Moe"));
    myFarm.Add(Critter("Larry"));
    myFarm.Add(Critter("Curly"));

    cout << "\nCalling Roll...\n";
    myFarm.RollCall();
   
    return 0;
}