Question

C#

The Zookeepers need a system to keep track of all their animals. They need to be able to enter all their animals into the system in a way that allows them to identify and locate them. This requires identifying them by species, age and one characteristic unique to their species.

• There are three cages and the user must input information about the animal in each one. After accepting input for all three cages, the program should output the contents of each cage in a way that exposes all the information about that animal.
• The program should accept the following species: Lion, Bear, Wolf.
• Define classes for the Lion, Bear, and Wolf species that all implement the Animal interface. All Animals should have an int field for age and a String field for species. Each species of animal should have its own unique field defined: String maneColour for Lions, int speed for Wolves, and bool isGrizzly for Bears. They should also define two methods:
  • RequestUniqueCharacteristic() which outputs a string asking for a value to store in the specific animal’s unique characteristic and stores it in the appropriate field (maneColour, speed, or isGrizzly)
  • GetDescription() which outputs a short sentence that includes all the animal’s info.
• Store all the Animals in a list of animals (List<Animal>) and iterate through the list to output all the animals after input is received.

Sample Session

Cage 1
What is the animal’s species? Lion
How old is it? 6
What colour is its mane? Brown

Cage 2
What is the animal’s species? Wolf
How old is it? 9
How fast can it run (in km/h)? 20

Cage 3
What is the animal’s species? Bear
How old is it? 12
Is it a grizzly bear (true/false)? No
=====
Cage 1 contains a 6-year-old lion with a brown mane.
Cage 2 contains a 9-year-old wolf that runs 20 km/h.
Cage 3 contains a 12-year-old non-grizzly bear.

Answer 1

Hi

Please find the code below

// Interface Animal
public interface Animal
{
// Properties for age, species with the corresponding datatype
int age { get; set; }
String species { get; set; }
// declaration for methods
void RequestUniqueCharacteristic();
void GetDescription();

}

//Lion class
public class Lions : Animal
{
// implement the properties
public int age { get; set; }
public string species { get ; set ; }
// unique field for lion
public string maneColour { get; set; }
// implement getdescription()
public void GetDescription()
{
Console.WriteLine($" {this.age}-year-old lion with a {this.maneColour} mane.");
}

// implement requestUniqueCharacteristic
void Animal.RequestUniqueCharacteristic()
{
Console.WriteLine("What colour is its mane?");
this.maneColour = Console.ReadLine();
}
}

public class Wolves : Animal
{
// implement the properties
public int age { get; set; }
public string species { get; set; }
// unique field for wolf
public int speed { get; set; }
// implement getdescription()
public void GetDescription()
{
Console.WriteLine($" {this.age}-year-old wolf that runs {this.speed} km/h.");
}
// implement requestUniqueCharacteristic
void Animal.RequestUniqueCharacteristic()
{
Console.WriteLine("How fast can it run (in km/h)?");
this.speed = Convert.ToInt32(Console.ReadLine());
}
}

public class Bears : Animal
{
// implement the properties
public int age { get; set; }
public string species { get; set; }
//unique field for bear
public bool isGrizzly { get; set; }
// implement getdescription()
public void GetDescription()
{
if (this.isGrizzly)
Console.WriteLine($" {this.age}-year-old grizzly bear.");
else
Console.WriteLine($" {this.age}-year-old non-grizzly bear.");
}
// implement requestUniqueCharacteristic
void Animal.RequestUniqueCharacteristic()
{
Console.WriteLine("Is it a grizzly bear (true/false)");
var boolString = (Console.ReadLine());
if (boolString == "true")
this.isGrizzly = true;
else
this.isGrizzly = false;
}
}

// program class
class Program
{
// main function
static void Main(string[] args)
{
// List of Animal
List<Animal> animals = new List<Animal>();
// counter initialise with 1
int i = 1;
// iterate 3 times to take the information for 3 cages as per the requirement mentioned
while (i < 4)
{

Animal animal = null;
// ask for the information of cage
Console.WriteLine($"Enter the information for Cage {i}");
Console.WriteLine("What is the animal’s species?");
var species = Console.ReadLine();
if (species.Trim().ToLower() == "lion")
animal = new Lions();

if (species.Trim().ToLower() == "wolf")
animal = new Wolves();

if (species.Trim().ToLower() == "bear")
animal = new Bears();

animal.species = species;
Console.WriteLine("How old is it? ");
// store the details
animal.age = Convert.ToInt32(Console.ReadLine());
animal.RequestUniqueCharacteristic();
// add the animal in animals list
animals.Add(animal);
// increment the counter
i++;
}

for (i = 0; i < animals.Count(); i++)
{
// diplay the cage index
Console.Write($"Cage {i + 1} contains a");
// call getdescription
animals[i].GetDescription();
}
} }

OUTPUT:

Thanks

Hope it helps!!