Resposta - Exercício 2

Interface IFlyable:

namespace exercise75.Models;

internal interface IFlyable
{
    public void Fly();
    public void Land();
}

Interface IPilotable:

namespace exercise75.Models;

internal interface IPilotable
{
    public void Brake();
    public void Accelerate();
}

Classe Vehicle:

namespace exercise75.Models;

internal class Vehicle : IFlyable, IPilotable
{
    public void Brake()
    {
        Console.WriteLine("Braking the vehicle...");
        return;
    }

    public void Accelerate()
    {
        Console.WriteLine("Accelerating the vehicle...");
        return;
    }

    public void Fly()
    {
        Console.WriteLine("Taking off the vehicle...");
        return;
    }

    public void Land()
    {
        Console.WriteLine("Landing the vehicle...");
        return;
    }
}

Instância:

using exercise75.Models;

Vehicle vehicle = new Vehicle();
vehicle.Accelerate();
vehicle.Brake();
vehicle.Fly();
vehicle.Land();