Exp1

#include <iostream>
#include <string>
using namespace std;

class Person {
protected:
    string name;
    int age;
public:
    // Constructor
    Person(string n, int a) : name(n), age(a) {}

    // Function to display information
    virtual void displayInfo() {
        cout << "Name: " << name << endl;
        cout << "Age: " << age << endl;
    }
};

class Student : public Person {
private:
    string course;
    string studentID;
public:
    // Constructor
    Student(string n, int a, string c, string id) : Person(n, a), course(c), studentID(id) {}

    // Function to display information
    void displayInfo() override {
        Person::displayInfo();
        cout << "Course: " << course << endl;
        cout << "Student ID: " << studentID << endl;
    }
};

class Employee : public Person {
private:
    string position;
    string department;
    string employeeID;
    double salary;
public:
    // Constructor
    Employee(string n, int a, string pos, string dept, string id, double sal) : Person(n, a), position(pos), department(dept), employeeID(id), salary(sal) {}

    // Function to display information
    void displayInfo() override {
        Person::displayInfo();
        cout << "Position: " << position << endl;
        cout << "Department: " << department << endl;
        cout << "Employee ID: " << employeeID << endl;
        cout << "Salary: $" << salary << endl;
    }
};

int main() {
    int choice;
    cout << "Choose an option:" << endl;
    cout << "1. Person" << endl;
    cout << "2. Student" << endl;
    cout << "3. Employee" << endl;
    cout << "Enter your choice: ";
    cin >> choice;

    switch(choice) {
        case 1: {
            string name;
            int age;
            cout << "Enter name: ";
            cin.ignore();
            getline(cin, name);
            cout << "Enter age: ";
            cin >> age;
            Person person(name, age);
            person.displayInfo();
            break;
        }
        case 2: {
            string name, course, studentID;
            int age;
            cout << "Enter name: ";
            cin.ignore();
            getline(cin, name);
            cout << "Enter age: ";
            cin >> age;
            cout << "Enter course: ";
            cin.ignore();
            getline(cin, course);
            cout << "Enter student ID: ";
            cin >> studentID;
            Student student(name, age, course, studentID);
            student.displayInfo();
            break;
        }
        case 3: {
            string name, position, department, employeeID;
            double salary;
            int age;
            cout << "Enter name: ";
            cin.ignore();
            getline(cin, name);
            cout << "Enter age: ";
            cin >> age;
            cout << "Enter position: ";
            cin.ignore();
            getline(cin, position);
            cout << "Enter department: ";
            getline(cin, department);
            cout << "Enter employee ID: ";
            cin >> employeeID;
            cout << "Enter salary: ";
            cin >> salary;
            Employee employee(name, age, position, department, employeeID, salary);
            employee.displayInfo();
            break;
        }
        default:
            cout << "Invalid choice!" << endl;
    }

    return 0;
}