Department reteachig

Project5z3Department/mainDepartment.cpp

@@ -0,0 +1,378 @@
+#include<iostream>
+#include<fstream>
+#include<string>
+#include<iomanip>
+using namespace std;
+using std::cin;
+using std::cout;
+using std::endl;
+
+class Human
+{
+	string last_name;
+	string first_name;
+	unsigned int age;
+public:
+	const string& get_last_name()const
+	{
+		return last_name;
+	}
+	const string& get_first_name()const
+	{
+		return first_name;
+	}
+	unsigned int get_age()const
+	{
+		return age;
+	}
+	void set_last_name(const string& last_name)
+	{
+		this->last_name = last_name;
+	}
+	void set_first_name(const string& first_name)
+	{
+		this->first_name = first_name;
+	}
+	void set_age(unsigned int age)
+	{
+		this->age = age;
+	}
+	//					Constructors:
+	Human(const string& last_name, const string& first_name, unsigned int age)
+	{
+		set_last_name(last_name);//Èíèöèàëèçàöèÿ â òåëå êîíñòðóêòîðà
+		set_first_name(first_name);
+		set_age(age);
+		cout << "HConstructor:\t" << this << endl;
+	}
+	virtual ~Human()
+	{
+		cout << "HDestructor:\t" << this << endl;
+	}
+	//				Methods:
+	virtual /*void*/ ostream& print(ostream& os)const
+	{
+		//cout << last_name << " " << first_name << " " << age << " ëåò.\n";
+		//return os << last_name << " " << first_name << ", " << age << " ëåò,\n";
+		os.width(10);	//Çàäàåò øèðèíó ïîëÿ, â êîòîðîå áóäåò âûâîäèòüñÿ ñëåäóþùåå çíà÷åíèå (â ñêîáêàõ óêàçûâàåòñÿ êîëè÷åñòâî çíàêîïîçèöèé)
+		os << std::left; os << last_name;
+		os.width(10); os << std::left; os << first_name;
+		os.width(5); os << std::left; os << age;
+		return os;
+	}
+	virtual ofstream& print(ofstream& os)const
+	{
+		os.width(20);
+		os << left;
+		os << typeid(*this).name() << "|";
+		os.width(15);	//Çàäàåò øèðèíó ïîëÿ, â êîòîðîå áóäåò âûâîäèòüñÿ ñëåäóþùåå çíà÷åíèå (â ñêîáêàõ óêàçûâàåòñÿ êîëè÷åñòâî çíàêîïîçèöèé)
+		os << std::left;
+		os << last_name << "|";
+		os.width(10);
+		os << std::left;
+		os << first_name << "|";
+		os.width(5);
+		os << std::left;
+		os << age << "|";
+		/*os << std::to_string(age) + ",";*/
+		return os;
+	}
+	virtual istream& input(istream& is)
+	{
+		return is >> last_name >> first_name >> age;
+	}
+	virtual ifstream& input(ifstream& is)
+	{
+		std::getline(is, last_name, '|');
+		std::getline(is, first_name, '|');
+		string age_buffer;
+		std::getline(is, age_buffer, '|');
+		this->age = std::stoi(age_buffer);	//stoi() - ïðåîáðàçóåò ñòðîêó â ÷èñëî
+		return is;
+	}
+};
+
+ostream& operator<<(ostream& os, const Human& obj)
+{
+	/*obj.print(os);
+	return os;*/
+	return obj.print(os);
+}
+ofstream& operator<<(ofstream& os, const Human& obj)
+{
+	return obj.print(os);
+}
+istream& operator>>(istream& is, Human& obj)
+{
+	return obj.input(is);
+}
+ifstream& operator>>(ifstream& is, Human& obj)
+{
+	return obj.input(is);
+}
+
+class Employee :public Human
+{
+	std::string position;//Çàíèìàåìàÿ äîëæíîñòü
+public:
+	const std::string& get_position()const
+	{
+		return position;
+	}
+	void set_posotion(const std::string& position)
+	{
+		this->position = position;
+	}
+	Employee(const string& last_name, const string& first_name, unsigned int age,
+		const std::string& position)
+		:Human(last_name, first_name, age)
+	{
+		this->position = position;//Èíèöèàëèçàöèÿ â òåëå êîíñòðóêòîðà (1 âàðèàíò)
+		cout << "EConstructor:\t" << this << endl;
+	}
+	~Employee()
+	{
+		cout << "EDestructor:\t" << this << endl;
+	}
+	ostream& print(ostream& os)const
+	{
+		Human::print(os);
+		os.width(10);
+		os << left;
+		os << position;
+		return os;
+	}
+	ofstream& print(ofstream& os)const
+	{
+		Human::print(os);
+		os.width(10);
+		os << left;
+		os << position << "|";
+		return os;
+	}
+	istream& input(istream& is)
+	{
+		Human::input(is);
+		is >> position;
+		return is;
+	}
+	ifstream& input(ifstream& is)
+	{
+		Human::input(is);
+		std::getline(is, position, '|');
+		return is;
+	}
+	virtual double count_salary()const = 0;
+};
+
+class ResidentEmployee :public Employee
+{
+	double salary;
+public:
+	double get_salary()const
+	{
+		return salary;
+	}
+	void set_salary(double salary)
+	{
+		this->salary = salary;
+	}
+	ResidentEmployee(const string& last_name, const string& first_name, unsigned int age,
+		const std::string& position,
+		double salary)
+		:Employee(last_name, first_name, age, position)
+	{
+		set_salary(salary);//Èíèöèàëèçàöèÿ â òåëå êîíñòðóêòîðà (2 âàðèàíò)
+		cout << "RConstructor;\t" << this << endl;
+	}
+	~ResidentEmployee()
+	{
+		cout << "RDestructor:\t" << this << endl;
+	}
+	ostream& print(ostream& os)const
+	{
+		Human::print(os);
+		os.width(16);
+		os << left;
+		os << salary;
+		return os;
+	}
+	ofstream& print(ofstream& os)const
+	{
+		Human::print(os);
+		os.width(10);
+		os << left;
+		os << salary << "RUB" << "|";
+		return os;
+	}
+	istream& input(istream& is)
+	{
+		Human::input(is);
+		is >> salary;
+		return is;
+	}
+	ifstream& input(ifstream& is)
+	{
+		Human::input(is);
+		string salary_buffer;
+		std::getline(is, salary_buffer, '|');
+		this->salary = std::stod(salary_buffer);
+		return is;
+	}
+	double count_salary()const
+	{
+		return salary;
+	}
+};
+
+class HourEmployee :public Employee
+{
+	double rate;	//Ñòàâêà çà ÷àñ
+	int complete_hour;	//Êîëè÷åñòâî îòðàáîòàííûõ ÷àñîâ
+public:
+	HourEmployee(const string& last_name, const string& first_name, unsigned int age,
+		const std::string& position,
+		double rate,
+		int complete_hour)
+		:Employee(last_name, first_name, age, position), rate(rate), complete_hour(complete_hour)//Èíèöèàëèçàöèÿ â èìåíè êîíñòðóêòîðà
+	{
+		cout << "HEConstructor;\t" << this << endl;
+	}
+	~HourEmployee()
+	{
+		cout << "HEDestructor;\t" << this << endl;
+	}
+	ostream& print(ostream& os)const
+	{
+		Human::print(os);
+		os.width(10);
+		os << left;
+		os << rate;
+		os.width(5);
+		os << left;
+		os << complete_hour;
+		return os;
+	}
+	ofstream& print(ofstream& os)const
+	{
+		Human::print(os);
+		os.width(10);
+		os << left;
+		os << rate << "RUB" << "|";
+		os.width(5);
+		os << left;
+		os << complete_hour << "hour" << "|";
+		return os;
+	}
+	istream& input(istream& is)
+	{
+		Human::input(is);
+		is >> rate;
+		is >> complete_hour;
+		return is;
+	}
+	ifstream& input(ifstream& is)
+	{
+		Human::input(is);
+		string rate_buffer;
+		std::getline(is, rate_buffer, '|');
+		this->rate = std::stod(rate_buffer);
+		string complete_hour_buffer;
+		std::getline(is, complete_hour_buffer, '|');
+		this->complete_hour = std::stod(complete_hour_buffer);
+		return is;
+	}
+	double count_salary()const
+	{
+		return rate * complete_hour;
+	}
+};
+
+void SaveToFile(/*const*/ Employee* department[], const int size, const string& filename);
+void Print(/*const*/ Employee* department[], const int size);
+Employee** LoadFromFile(const std::string& filename);
+Employee* HumanFactory(const std::string& human_type);
+
+void main()
+{
+	setlocale(LC_ALL, "");
+	//Generalisation
+	Employee* department[] =
+	{
+		new HourEmployee("Pinkman", "Jessie", 22, "Helper", 1000, 20),
+		new HourEmployee("Versetti", "Tommy", 30, "Killer", 5000, 10),
+		new ResidentEmployee("White", "Walter", 50, "Chemist", 150000),
+		new ResidentEmployee("Diaz", "Ricardo", 55, "Director", 825000),
+		new ResidentEmployee("Schrader", "Hank", 42, "Detective", 10000),
+		new HourEmployee("Eistein", "Albert", 143, "Researcher", 3000, 15)
+	};
+	double total_money = 0;
+	//Specialisation
+	cout << endl;
+	for (int i = 0; i < sizeof(department) / sizeof(department[0]); i++)
+	{
+		cout << *department[i] << "salary: " << department[i]->count_salary() << endl;
+		total_money += department[i]->count_salary();
+	}
+	cout << "\nTotal money: " << setprecision(15) << total_money << " RUB" << endl;	//setprecision(15) - îïðåäåëÿåò òî÷íîñòü âûâåäåíèÿ 15 çíàêîâ
+	for (int i = 0; i < sizeof(department) / sizeof(department[0]); i++)
+	{
+		delete department[i];
+	}
+}
+
+void SaveToFile(Employee* department[], const int size, const string& filename)
+{
+	ofstream fout(filename);
+	for (int i = 0; i < size; i++)
+	{
+		fout << *department[i] << endl;
+	}
+	fout.close();
+}
+void Print(Employee* department[], const int size)
+{
+	for (int i = 0; i < size; i++)
+	{
+		cout << *department[i] << endl;
+	}
+}
+Employee** LoadFromFile(const std::string& filename)
+{
+	ifstream fin(filename);
+	if (fin.is_open())
+	{
+		std::string buffer;
+		int n = 0;
+		while (!fin.eof())
+		{
+			std::getline(fin, buffer);
+			cout << fin.tellg() << endl;
+			n++;
+		}
+		Employee** department = new Employee * [n] {};
+		fin.clear();
+		fin.seekg(ios::beg, 0);
+		cout << fin.tellg() << endl;
+		string human_type;
+		for (int i = 0; i < n; i++)
+		{
+			std::getline(fin, human_type, '|');
+			department[i] = HumanFactory(human_type);
+			fin >> *department[i];
+		}
+		fin.close();
+		return department;
+	}
+	else
+	{
+		cerr << "Error: File not found!" << endl;
+	}
+	return nullptr;
+}
+Employee* HumanFactory(const std::string& human_type)
+{
+	if (human_type.find("class ResidentEmployee") != string::npos) return new ResidentEmployee("last_name", "first_name", 0, "spec", 0);
+	if (human_type.find("HourEmployee") != string::npos) return new HourEmployee("last_name", "first_name", 0, "spec", 0, 0);
+	return nullptr;
+}