c++ - 错误 : "function" is private void, 错误:在此上下文中

Question

我是 C++ 的新手，我想了解为什么我的程序会给我这个错误。我构建了一个程序来模拟一群兔子。能够自动添加他们，给他们名字、年龄等。

这些是我得到的错误:

main2.cpp: In function ‘int main()’:
main2.cpp:109:6: error: ‘void Bunny::printBunny()’ is private
 void printBunny()
      ^
main2.cpp:132:26: error: within this context
   colony[ i ].printBunny();
                          ^

这是我想出的代码。

enter code here
#include <iostream>
#include <string>
#include <ctime> 
#include <vector>
#include <cstdlib>

using namespace std;

void setSex( void );
char getSex();
void setColor( void );
string getColor();
void setAge( void );
int getAge();
void setName( void );
string getName();
void printBunny();

static const int  POSSIBLE_NAMES = 5;
static const int  POSSIBLE_COLORS = 4;

class Bunny
{
    char sex;
    string color;
    int age;
    string name;

    bool radioactive_mutant_vampire_bunny;

    BunnyData()
    {
        //srand( time( 0 ) );

        setSex();
        setColor();
        setAge();
        setName();
    }

    void setSex()
    {
        int randomNumber = 1 + rand() % 2;

        ( randomNumber == 1 ) ? sex = 'm' : sex = 'f';
    }

    char getSex() 
    {
        return sex;
    }

    void setColor()
    {
        //color = possibleColors[ 0 + rand() % POSSIBLE_COLORS ];
    }

    string getColor() 
    {
        return color;
    }

    void setAge()
    {
        age = 0;
    }

    int getAge() 
    {
        return age;
    }

    void setName()
    {
        //name = possibleNames[ 0 + rand() % POSSIBLE_NAMES ];
    }

    string getName() 
    {
        return name;
    }

    void printBunny() 
    {
        cout << "Name: " << getName() << endl;
        cout << "Sex: " << getSex() << endl;
        cout << "Color: " << getColor() << endl;
        cout << "Age: " << getAge() << endl;
    }
};

int main()
{

    vector< Bunny > colony;

    cout << "Welcome to Bunny Graduation!" << endl << endl;

    for( int i = 0; i < 5; ++i )
    {
        colony.push_back( Bunny() );
    }

    for( int i = 0; i < 5; ++i )
    {
        colony[ i ].printBunny();
        cout << endl;
    }

    return 0;
}

Answer 1

除非另有说明，否则类中的所有内容都具有私有(private)访问权限例如，

class access
{
    int iAmPrivate; // private. Not accessible outside of the class
public:
    int getValue() //public and accessible to all 
    {
        return iAmPrivate;
    }
    int iAmPublic; //also public
}

Documentation on access levels .