OOP Session Two Task

using System;

namespace OOP_Task
{
// Part 1: Encapsulation
public class Employee
{
// Private fields
private int id;
private string name;
private double salary;

// Properties
public int Id
{
get { return id; }
set { id = value; }
}

public string Name
{
get { return name; }
set { name = value; }
}

public double Salary
{
get { return salary; }
set
{
if (value >= 0)
salary = value;
else
Console.WriteLine("Salary cannot be negative!");
}
}

// Method
public void DisplayInfo()
{
Console.WriteLine($"ID: {id}, Name: {name}, Salary: {salary}");
}
}

// Part 2: Inheritance

// Manager Class
public class Manager : Employee
{
private double bonus;

public double Bonus
{
get { return bonus; }
set
{
if (value >= 0)
bonus = value;
else
Console.WriteLine("Bonus cannot be negative!");
}
}

public double CalculateTotalSalary()
{
return Salary + bonus;
}
}

// Developer Class
public class Developer : Employee
{
private string programmingLanguage;

public string ProgrammingLanguage
{
get { return programmingLanguage; }
set { programmingLanguage = value; }
}

public void DisplayDeveloperInfo()
{
Console.WriteLine($"Language: {programmingLanguage}");
}
}

// Part 3: Main Program
class Program
{
static void Main(string[] args)
{
// Manager object
Manager manager = new Manager();
manager.Id = 1;
manager.Name = "Ahmed";
manager.Salary = 8000;
manager.Bonus = 2000;

Console.WriteLine("Manager:");
manager.DisplayInfo();
Console.WriteLine($"Bonus: {manager.Bonus}");
Console.WriteLine($"Total Salary: {manager.CalculateTotalSalary()}");

Console.WriteLine();

// Developer object
Developer developer = new Developer();
developer.Id = 2;
developer.Name = "Sara";
developer.Salary = 6000;
developer.ProgrammingLanguage = "C#";

Console.WriteLine("Developer:");
developer.DisplayInfo();
developer.DisplayDeveloperInfo();
}
}
}