Lære Udfordring: Afledte Klasser

En klasse kaldet Vehicle er givet. Derudover er der to andre klasser kaldet Car og Plane.

Der er i øjeblikket en fejl i koden. For at rette fejlen skal du få Car og Plane til at arve fra Vehicle.

Rediger koden, så Car og Plane bliver underklasser af Vehicle.

index.cs


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using System;

public class Vehicle
{
    public int modelYear;
    public float fuel;
}

public class Car
{
    public void Drive()
    {
        Console.WriteLine("The car is now driving.");
    }
}

public class Plane
{
    public void Fly()
    {
        Console.WriteLine("The plane is now flying.");
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        Car c1 = new Car();
        Plane p1 = new Plane();

        c1.modelYear = 2024;
        p1.fuel = 6000;

        Console.WriteLine("Executed Successfully");
    }
}

Brug symbolet : i syntaksen for en afledt klasse for at angive forældreklassen.

index.cs


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using System;

public class Vehicle
{
    public int modelYear;
    public float fuel;
}

public class Car : Vehicle
{
    public void Drive()
    {
        Console.WriteLine("The car is now driving.");
    }
}

public class Plane : Vehicle
{
    public void Fly()
    {
        Console.WriteLine("The plane is now flying.");
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        Car c1 = new Car();
        Plane p1 = new Plane();

        c1.modelYear = 2024;
        p1.fuel = 6000;

        Console.WriteLine("Executed Successfully");
    }
}

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Tak for dine kommentarer!

Sektion 4. Kapitel 2

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Suggested prompts:

Can you show me the code for the Vehicle, Car, and Plane classes?

What does the error message say?

Can you explain how inheritance works in this context?

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En klasse kaldet Vehicle er givet. Derudover er der to andre klasser kaldet Car og Plane.

Der er i øjeblikket en fejl i koden. For at rette fejlen skal du få Car og Plane til at arve fra Vehicle.

Rediger koden, så Car og Plane bliver underklasser af Vehicle.

index.cs


              12345678910111213141516171819202122232425262728293031323334353637
            
using System;

public class Vehicle
{
    public int modelYear;
    public float fuel;
}

public class Car
{
    public void Drive()
    {
        Console.WriteLine("The car is now driving.");
    }
}

public class Plane
{
    public void Fly()
    {
        Console.WriteLine("The plane is now flying.");
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        Car c1 = new Car();
        Plane p1 = new Plane();

        c1.modelYear = 2024;
        p1.fuel = 6000;

        Console.WriteLine("Executed Successfully");
    }
}

Brug symbolet : i syntaksen for en afledt klasse for at angive forældreklassen.

index.cs


              12345678910111213141516171819202122232425262728293031323334353637
            
using System;

public class Vehicle
{
    public int modelYear;
    public float fuel;
}

public class Car : Vehicle
{
    public void Drive()
    {
        Console.WriteLine("The car is now driving.");
    }
}

public class Plane : Vehicle
{
    public void Fly()
    {
        Console.WriteLine("The plane is now flying.");
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        Car c1 = new Car();
        Plane p1 = new Plane();

        c1.modelYear = 2024;
        p1.fuel = 6000;

        Console.WriteLine("Executed Successfully");
    }
}

Var alt klart?

Tak for dine kommentarer!

Sektion 4. Kapitel 2