#include <iostream>

#include <string>

using namespace std;

// Program #1

class Person

{

private:

string name;

int age;

public:

Person()

{ // default constructor

age = 17;

name = "Rustam";

}

Person(int x)

{

age = x;

name = "Rustam";

}

void Display()

{

cout << "Name: " << name << endl;

cout << "Age: " << age << endl;

}

};

// Program #2

class Records

{

private:

string name;

float salary;

string date_of_birth;

public:

Records()

{

name = "Rustam";

salary = 1234;

date_of_birth = "12.34.5678";

}

Records(string name1, float salary1, string date_of_birth1)

{

name = name1;

salary = salary1;

date_of_birth = date_of_birth1;

}

void Display()

{

cout << endl;

cout << "Name: " << name << endl;

cout << "Salary: " << salary << endl;

cout << "Date of Birth: " << date_of_birth << endl;

}

void alert_name()

{

cout << "New name: ";

cin >> name;

}

void alert_salary()

{

cout << "New salary: ";

cin >> salary;

}

void alert_date()

{

cout << "New Date of Birth: ";

cin >> date_of_birth;

}

};

// Program #3

class Account

{

public:

Account()

{

cout << "Object is being Created" << endl;

name = "Rustam";

number = "123456789";

balance = 12345;

}

~Account()

{

cout << "Object is being Deleted" << endl;

}

void Display()

{

cout << "Name: " << name << endl

<< "Number: " << number << endl

<< "Balance: " << balance << endl;

}

private:

string name;

string number;

float balance;

};

// Program #4

class Rectangle

{

private:

double height;

double width;

public:

Rectangle()

{

height = 5;

width = 5;

}

Rectangle(double height2, double width2)

{

height = height2;

width = width2;

}

void setHeight(double a)

{

height = a;

}

double getHeight()

{

return height;

}

void setWidth(double b)

{

width = b;

}

double getWidht()

{

return width;

}

double getArea()

{

return width * height;

}

double getPerimeter()

{

return 2 * (width + height);

}

};

void main_menu_view()

{

cout << "Main menu: \n";

cout << "[1] Person's info\n";

cout << "[2] Records\n";

cout << "[3] Account\n";

cout << "[4] Triangle\n";

cout << "[0] Exit\n";

cout << "Your Choice: ";

}

int main()

{

string user_choise;

main_menu_view();

cin >> user_choise;

// main_menu_validation_check

if (user_choise == "1")

{

system("cls");

int x;

cout << "Input Age: ";

cin >> x;

Person person1, person2(x);

person1.Display();

cout << endl;

person2.Display();

}

else if (user_choise == "2")

{

system("cls");

cout << "Records: " << endl;

string name;

float salary;

string date_of_birth;

cout << "Name: ";

cin >> name;

cout << "Salary: ";

cin >> salary;

cout << "Date of birth: ";

cin >> date_of_birth;

Records record1, record2(name, salary, date_of_birth);

record1.Display();

record2.Display();

cout << endl;

Records *ptr = &record1;

ptr->alert_name();

ptr->alert_salary();

ptr->alert_date();

record1.Display();

record2.Display();

}

else if (user_choise == "3")

{

system("cls");

Account a;

a.Display();

a.~Account();

}

else if (user_choise == "4")

{

system("cls");

Rectangle r;

double width1, height1;

cout << "Enter the width fo the rectangle: ";

cin >> width1;

cout << "Enter the height fo the rectangle: ";

cin >> height1;

Rectangle r2(height1, width1);

r2.setHeight(height1);

r2.setWidth(width1);

system("cls");

int user_choice_1;

/*int qwerty;

cin >> qwerty;*/

while (user_choice_1 >= 1)

{

cout << "Rectangle: \n";

cout << "[1] Area\n";

cout << "[2] Perimeter\n";

cout << "[0] Exit\n";

cin >> user_choice_1;

switch (user_choice_1)

{

case 1:

system("cls");

cout << "The Area is: (Default Constructor (5,5)) : " << r.getArea() << endl

<< endl;

cout << "The Area is: (Parametric Constructor) : " << r2.getArea() << endl;

cout << endl;

break;

case 2:

system("cls");

cout << "The Perimeter is: (Default Constructor(5,5) : " << r.getPerimeter() << endl

<< endl;

cout << "The Perimeter is: (Parametric Constructor) : " << r2.getPerimeter() << endl;

break;

case 0:

break;

}

}

}

else if (user_choise == "0")

{

return 0;

}

else

{

system("cls");

cout << "Please try again !!!\n";

main();

}

return 0;

}