Apprendre Défi : Surcharge de Méthode | Principes Essentiels de la POO

Dans cet exercice pratique, une classe ShippingCalculator vous est fournie avec une méthode nommée CalculateShippingCost. Cette méthode doit être surchargée afin de prendre en charge différents scénarios de calcul des frais de port en fonction du poids et de la destination.

Votre tâche consiste à compléter les espaces vides (___) de manière appropriée pour finaliser les calculs dans la méthode CalculateShippingCost pour les expéditions locales et internationales.

index.cs


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using System;

public class ShippingCalculator
{
    // Method to calculate shipping cost for local shipments
    public double CalculateShippingCost(double weight)
    {
        // Local shipments have a fixed rate of $5 per kilogram
        return weight * ___;
    }

    // Method to calculate shipping cost for international shipments
    // It has two parameters 'weight' and an additional 'destinationCountry' which is of type 'string'
    ___
    {
        // International shipments have a base rate of $10 per kilogram
        // Additional $3 per kilogram for shipments to Canada
        // Additional $5 per kilogram for shipments to other countries
        double baseRate = ___;
        double additionalRate = destinationCountry.ToLower() == "canada" ? ___ : ___;

        return weight * (baseRate + additionalRate);
    }
}

class ConsoleApp
{
    static void Main()
    {
        ShippingCalculator calculator = new ShippingCalculator();

        // Test local shipment
        double localCost = calculator.CalculateShippingCost(2);
        Console.WriteLine($"Local Shipment Cost: ${localCost}");

        // Test international shipment to Canada
        double internationalToCanadaCost = calculator.CalculateShippingCost(2, "Canada");
        Console.WriteLine($"International Shipment to Canada Cost: ${internationalToCanadaCost}");

        // Test international shipment to other countries
        double internationalToOtherCost = calculator.CalculateShippingCost(2, "Germany");
        Console.WriteLine($"International Shipment to Other Country Cost: ${internationalToOtherCost}");
    }
}

Vous devez surcharger la méthode CalculateShippingCost. Ainsi, la nouvelle méthode doit porter le même nom mais avoir des paramètres différents. Les paramètres requis sont indiqués dans les commentaires.

index.cs


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using System;

public class ShippingCalculator
{
    // Method to calculate shipping cost for local shipments
    public double CalculateShippingCost(double weight)
    {
        // Local shipments have a fixed rate of $5 per kilogram
        return weight * 5;
    }

    // Method to calculate shipping cost for international shipments
    // It has two parameters 'weight' and an additional 'destinationCountry' which is of type 'string'
    public double CalculateShippingCost(double weight, string destinationCountry)
    {
        // International shipments have a base rate of $10 per kilogram
        // Additional $3 per kilogram for shipments to Canada
        // Additional $5 per kilogram for shipments to other countries
        double baseRate = 10;
        double additionalRate = destinationCountry.ToLower() == "canada" ? 3 : 5;

        return weight * (baseRate + additionalRate);
    }
}

class ConsoleApp
{
    static void Main()
    {
        ShippingCalculator calculator = new ShippingCalculator();

        // Test local shipment
        double localCost = calculator.CalculateShippingCost(2);
        Console.WriteLine($"Local Shipment Cost: ${localCost}");

        // Test international shipment to Canada
        double internationalToCanadaCost = calculator.CalculateShippingCost(2, "Canada");
        Console.WriteLine($"International Shipment to Canada Cost: ${internationalToCanadaCost}");

        // Test international shipment to other countries
        double internationalToOtherCost = calculator.CalculateShippingCost(2, "Germany");
        Console.WriteLine($"International Shipment to Other Country Cost: ${internationalToOtherCost}");
    }
}

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Section 4. Chapitre 8

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index.cs


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using System;

public class ShippingCalculator
{
    // Method to calculate shipping cost for local shipments
    public double CalculateShippingCost(double weight)
    {
        // Local shipments have a fixed rate of $5 per kilogram
        return weight * ___;
    }

    // Method to calculate shipping cost for international shipments
    // It has two parameters 'weight' and an additional 'destinationCountry' which is of type 'string'
    ___
    {
        // International shipments have a base rate of $10 per kilogram
        // Additional $3 per kilogram for shipments to Canada
        // Additional $5 per kilogram for shipments to other countries
        double baseRate = ___;
        double additionalRate = destinationCountry.ToLower() == "canada" ? ___ : ___;

        return weight * (baseRate + additionalRate);
    }
}

class ConsoleApp
{
    static void Main()
    {
        ShippingCalculator calculator = new ShippingCalculator();

        // Test local shipment
        double localCost = calculator.CalculateShippingCost(2);
        Console.WriteLine($"Local Shipment Cost: ${localCost}");

        // Test international shipment to Canada
        double internationalToCanadaCost = calculator.CalculateShippingCost(2, "Canada");
        Console.WriteLine($"International Shipment to Canada Cost: ${internationalToCanadaCost}");

        // Test international shipment to other countries
        double internationalToOtherCost = calculator.CalculateShippingCost(2, "Germany");
        Console.WriteLine($"International Shipment to Other Country Cost: ${internationalToOtherCost}");
    }
}

index.cs


              1234567891011121314151617181920212223242526272829303132333435363738394041424344
            
using System;

public class ShippingCalculator
{
    // Method to calculate shipping cost for local shipments
    public double CalculateShippingCost(double weight)
    {
        // Local shipments have a fixed rate of $5 per kilogram
        return weight * 5;
    }

    // Method to calculate shipping cost for international shipments
    // It has two parameters 'weight' and an additional 'destinationCountry' which is of type 'string'
    public double CalculateShippingCost(double weight, string destinationCountry)
    {
        // International shipments have a base rate of $10 per kilogram
        // Additional $3 per kilogram for shipments to Canada
        // Additional $5 per kilogram for shipments to other countries
        double baseRate = 10;
        double additionalRate = destinationCountry.ToLower() == "canada" ? 3 : 5;

        return weight * (baseRate + additionalRate);
    }
}

class ConsoleApp
{
    static void Main()
    {
        ShippingCalculator calculator = new ShippingCalculator();

        // Test local shipment
        double localCost = calculator.CalculateShippingCost(2);
        Console.WriteLine($"Local Shipment Cost: ${localCost}");

        // Test international shipment to Canada
        double internationalToCanadaCost = calculator.CalculateShippingCost(2, "Canada");
        Console.WriteLine($"International Shipment to Canada Cost: ${internationalToCanadaCost}");

        // Test international shipment to other countries
        double internationalToOtherCost = calculator.CalculateShippingCost(2, "Germany");
        Console.WriteLine($"International Shipment to Other Country Cost: ${internationalToOtherCost}");
    }
}

Tout était clair ?

Merci pour vos commentaires !

Section 4. Chapitre 8