Learn Challenge: Inheritance

Fill in the blanks to make sure the base constructors are properly called in the following code:

index.cs


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using System;

class Animal
{
    string species;

    public Animal(string species)
    {
        this.species = species;
    }

    public void Eat()
    {
        Console.WriteLine("The animal is eating.");
    }
}

class Dog : Animal
{
    string breed;

    public Dog(string species, string breed) : ___
    {
        this.breed = breed;
    }

    public void Bark()
    {
        Console.WriteLine("Woof! Woof!");
    }
}

class GermanShepherd : Dog
{
    public GermanShepherd(string species, string breed) : ___
    {
        Console.WriteLine("GermanShepherd Object Created");
    }

    public void PerformGuardDuty()
    {
        Console.WriteLine("The German Shepherd is performing guard duty.");
    }
}


class ConsoleApp
{
    static void Main()
    {
        new GermanShepherd("Canis lupus familiaris", "German Shepherd");
    }
}

Use the public className(arg1, arg2..) : base(arg1, arg2, …) syntax in the derived classes to call the base constructors.

index.cs


              12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152
            
using System;

class Animal
{
    string species;

    public Animal(string species)
    {
        this.species = species;
    }

    public void Eat()
    {
        Console.WriteLine("The animal is eating.");
    }
}

class Dog : Animal
{
    string breed;

    public Dog(string species, string breed) : base(species)
    {
        this.breed = breed;
    }

    public void Bark()
    {
        Console.WriteLine("Woof! Woof!");
    }
}

class GermanShepherd : Dog
{
    public GermanShepherd(string species, string breed) : base(species, breed)
    {
        Console.WriteLine("GermanShepherd Object Created");
    }

    public void PerformGuardDuty()
    {
        Console.WriteLine("The German Shepherd is performing guard duty.");
    }
}

class ConsoleApp
{
    static void Main()
    {
        new GermanShepherd("Canis lupus familiaris", "German Shepherd");
    }
}

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Section 5. Chapter 3

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Fill in the blanks to make sure the base constructors are properly called in the following code:

index.cs


              1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253
            
using System;

class Animal
{
    string species;

    public Animal(string species)
    {
        this.species = species;
    }

    public void Eat()
    {
        Console.WriteLine("The animal is eating.");
    }
}

class Dog : Animal
{
    string breed;

    public Dog(string species, string breed) : ___
    {
        this.breed = breed;
    }

    public void Bark()
    {
        Console.WriteLine("Woof! Woof!");
    }
}

class GermanShepherd : Dog
{
    public GermanShepherd(string species, string breed) : ___
    {
        Console.WriteLine("GermanShepherd Object Created");
    }

    public void PerformGuardDuty()
    {
        Console.WriteLine("The German Shepherd is performing guard duty.");
    }
}


class ConsoleApp
{
    static void Main()
    {
        new GermanShepherd("Canis lupus familiaris", "German Shepherd");
    }
}

Use the public className(arg1, arg2..) : base(arg1, arg2, …) syntax in the derived classes to call the base constructors.

index.cs


              12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152
            
using System;

class Animal
{
    string species;

    public Animal(string species)
    {
        this.species = species;
    }

    public void Eat()
    {
        Console.WriteLine("The animal is eating.");
    }
}

class Dog : Animal
{
    string breed;

    public Dog(string species, string breed) : base(species)
    {
        this.breed = breed;
    }

    public void Bark()
    {
        Console.WriteLine("Woof! Woof!");
    }
}

class GermanShepherd : Dog
{
    public GermanShepherd(string species, string breed) : base(species, breed)
    {
        Console.WriteLine("GermanShepherd Object Created");
    }

    public void PerformGuardDuty()
    {
        Console.WriteLine("The German Shepherd is performing guard duty.");
    }
}

class ConsoleApp
{
    static void Main()
    {
        new GermanShepherd("Canis lupus familiaris", "German Shepherd");
    }
}

Everything was clear?

Thanks for your feedback!

Section 5. Chapter 3