Make them private and provide public accessors to class members - C++ Class

Description

Make them private and provide public accessors to class members

Demo Code

#include <cinttypes>
#include <iostream>

using namespace std;

class Vehicle/*  w w  w  .j  av a2 s  . c o  m*/
{
private:
    int m_NumberOfWheels{};

public:
    Vehicle(int numberOfWheels)
        : m_NumberOfWheels{ numberOfWheels }
    {

    }

    int GetNumberOfWheels() const
    {
        return m_NumberOfWheels;
    }
};

class Car : public Vehicle
{
public:
    Car()
        : Vehicle(4)
    {

    }
};
class Motorcycle : public Vehicle
{
public:
    Motorcycle()
        : Vehicle(2)
    {

    }
};

int main(int argc, char* argv[])
{
    Car myCar{};
    cout << "A car has " << myCar.GetNumberOfWheels() << " wheels." << endl;

    Motorcycle myMotorcycle;
    cout << "A motorcycle has " << myMotorcycle.GetNumberOfWheels() << " wheels." << endl;

    return 0;
}

Result

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Related Tutorials

• Using the Public and Private Words to Hide Parts of Your Class
• Protecting Embedded Classes
• Use access modifiers to utilize encapsulation and hide class implementations from calling code.
• Protected access specifier allows for a mix of public and private access specifiers.
• Modifying a Class's private Data with a Friend Function, Friends can access private members of a class.