encapsulation

encapsulation.cpp

// https://www.youtube.com/watch?v=wN0x9eZLix4

#include <iostream>
#include <regex>

using namespace std;

class AbstractEmployee
{
    // Returns true if got promotion
    virtual bool RequestPromotion() = 0;
};

class Employee : AbstractEmployee
{
private:
    string Name;
    string Company;
    int Age;

public:
    Employee(string name, string company, int age)
    {
        Name = name;
        Company = company;
        Age = age;
    }

    // Setters and getters
    void setName(string value)
    {

        if (value.length() > 50)
        {
            return;
        }

        auto nameMatch = regex("^[a-zA-Z]+$");
        if (!regex_match(value, nameMatch))
        {
            return;
        }

        Name = value;
    }

    string getName()
    {
        return Name;
    }

    void setCompany(string company)
    {
        Company = company;
    }

    string getCompany()
    {
        return Company;
    }

    void setAge(int value)
    {
        if (value < 0)
        {
            return;
        }
        Age = value;
    }

    int getAge()
    {
        return Age;
    }

    void Introduce()
    {
        cout << Name << ", age " << Age << ", works at " << Company << ".\n";
    }

    bool RequestPromotion()
    {
        if (Age < 30){
            cout << Name << " did not get promoted.\n";
            return false;
        }else {
            cout << Name << " got promoted.\n";
            return true;
        }
    }
};

int main()
{
    Employee bob = Employee("Bob", "Starbucks", 18);
    Employee mary = Employee("Mary", "Facebook", 30);

    bob.Introduce();
    mary.Introduce();
    bool isBobPromoted = bob.RequestPromotion();
    bool isMaryPromoted = mary.RequestPromotion();
}