Notes

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;

public class Aeroplane
{
public int AeroplaneID;

public Aeroplane()
{
this.AeroplaneID = 001;
Console.WriteLine("Aeroplane Default Constructor");
}
public void AeroplaneDatails()
{
Console.WriteLine($"Aeroplane Id : {this.AeroplaneID}");
}
}

public class IndiGo : Aeroplane
{
public int FlightCapcity { get; set; }

public IndiGo()
{
Console.WriteLine("Default Construtor of IndiGo");
this.FlightCapcity = 100;
}
public void IndiGoDetails()
{
Console.WriteLine($"IndiGo Capacity {this.FlightCapcity}");
}
}

public class GoAir : Aeroplane
{
public int FlightCapcity { get; set; }

public GoAir()
{
Console.WriteLine("Default Construtor of IndiGo");
this.FlightCapcity = 100;
}
public void GoAirDetails()
{
Console.WriteLine($"GoAir Capacity {this.FlightCapcity}");
}
}

public class DomesticFlight : IndiGo
{
public string Source { get; set; }
public string Destination { get; set; }
public DomesticFlight()
{
Console.WriteLine("Default Constructor of DomesticFlight");
this.Source = "Pune";
this.Destination = "Delhi";
}
public void DomesticFlightDetails()
{
Console.WriteLine($"Source : {this.Source}n Destination : {this.Destination}");
}
}

public class InternationalFlight : IndiGo
{
public string Source { get; set; }
public string Destination { get; set; }
public InternationalFlight()
{
Console.WriteLine("Default Constructor of InternationalFlight");
this.Source = "Pune,India";
this.Destination = "California,USA";
}
public void InterNationalFlightDetails()
{
Console.WriteLine($"Source : {this.Source}n Destination : {this.Destination}");
}
}

public class Pailot : GoAir
{
public int Id { get; set; }
public string Name { get; set; }

public Pailot()
{
Console.WriteLine("Default Constructor of Pailot");
this.Id = 011;
this.Name = "Mark";
}
public void PailotDetails()
{
Console.WriteLine($"Pailot Id : {this.Id} n Pailot Name : {this.Name}");
}
}

public class CabinStaff : GoAir
{
public int Id { get; set; }
public string Name { get; set; }

public CabinStaff()
{
Console.WriteLine("Default Constructor of Pailot");
this.Id = 021;
this.Name = "John";
}
public void CabinStaffDetails()
{
Console.WriteLine($"CabinStaff Id : {this.Id} n CabinStaff Name : {this.Name}");
}
}


//main

public class Program
{
public static void Main()
{
DomesticFlight domesticFlight = new DomesticFlight();
domesticFlight.AeroplaneDatails();
domesticFlight.IndiGoDetails();
domesticFlight.DomesticFlightDetails();

InternationalFlight internationalFlight = new InternationalFlight();
internationalFlight.AeroplaneDatails();
internationalFlight.InterNationalFlightDetails();
}
}