Question

Please help me with the following question. This is for Java programming.

In this assignment you are going to demonstrate the uses of inheritance and polymorphism. You will create an Animals class and a Zoo class that holds all the animals. You should create a general Animalclass where all other classes are derived from (except for the Zoo class). You should then create general classes such as Mammal, Reptile, and whatever else you choose based off of the Animalclass. For example, the Mammal class will hold things related to mammals like fur, warm blooded, etc. From these classes you should then create specific classes such as Tiger (based off the Animalclass) or Lizards which would be based off of the Reptile class and so on. Because some properties these classes will not apply to all subclasses, you will need to override these properties. For example, say you create a Bird class that is derived off the Animal class and then derive a Penguinclass off the Bird class. Your Bird class may have a fly property in it, but Penguins don't fly. You would want to override that property so that your Penguin class doesn't inherit the fly property from the Bird class.

Your class must satisfy the following requirements:

• Your program must be menu driven and allow the user to perform at a minimum the following functions:
  • Add specific animals to the class
  • Remove/delete animals from the class
  • Display all the animals in the class
  • Display a specific animal in the class by name and a random one
  • Display a specific animals by type (e.g., display all the tigers, or penguins, or grey elephants).
• Your program must contain the following classes at a minimum:
  • Zoo
  • Animal
  • 3 subclass derived off Animal like Reptile, Mammal, etc. or alternate classes like Biped, Quadruped or some other unique way that you think of classifying animals and that can be solidified into a class.
  • 9 specific types of animals that derive from the Reptile, Mammal, or whatever subclasses you have that are derived from the Animal class.
• Each of your classes should include a member function to represent the class member data as a string.
• The Zoo class will hold Animals. It is the main program and should have member functions to add or remove the Animals and a function to represent the entire Zoo as a string. It should also have functions to get a specific Animal (by name) and an operator to get a random one from the Zoo.
• Your main program should create instances of specific Animals and then populate the Zoo with them. The user should then be allowed to view the properties of specific Animals that they request or from one that is chosen at random.
• Create test cases to thoroughly test your program. Your test cases should show the input and expected output for each case.

Answer 1

public class Animal {
  
   String move;
   void show()
   {
       System.out.println("Animal class");
   }
  
}
class Reptiles extends Animal
{
String type;
  
   void show()
   {
       System.out.println("Reptiles class");
   }
  
}
class Turtle extends Reptiles
{
   Turtle(String type,String move)
   {
       this.move=move;
       this.type=type;
   }
   void show()
   {
       System.out.println("type: "+type+" move: "+move);
   }
}

class Crocodile extends Reptiles
{
   Crocodile(String type,String move)
   {
       this.move=move;
       this.type=type;
   }
   void show()
   {
       System.out.println("type: "+type+" move: "+move);
   }
}
class Snake extends Reptiles
{
   Snake(String type,String move)
   {
       this.move=move;
       this.type=type;
   }
   void show()
   {
       System.out.println("type: "+type+" move: "+move);
   }
}
class Bird extends Animal
{
  
   String color;
   String swim;
   void show()
   {
       System.out.println("Bird class");
   }
  
}
class Parrot extends Bird
{
   Parrot(String move,String color)
   {
       this.move=move;
       this.color=color;
   }
   void show()
   {
       System.out.println("move : "+move +"color :"+color);
   }
}
class Penguin extends Bird
{
   Penguin(String color,String move)
   {
       this.move=move;
       this.color=color;
   }
   void show()
   {
       System.out.println("move : "+move +"color :"+color);
   }
}
class Duck extends Bird
{
   Duck(String color,String swim,String move)
   {
       this.move=move;
       this.swim=swim;
       this.color=color;
   }
   void show()
   {
       System.out.println("Swim : "+swim +" color :"+color+" move:"+move);
   }
}
class Mammals extends Animal
{
   String type;
  
   void show()
   {
       System.out.println("Mammals class");
   }
}
class Tiger extends Mammals
{
   Tiger(String type,String move)
   {
       this.move=move;
       this.type=type;
   }
   void show()
   {
       System.out.println("type: "+type+" move: "+move);
   }
}

class Buffalo extends Mammals
{
   Buffalo(String type,String move)
   {
       this.move=move;
       this.type=type;
   }
   void show()
   {
       System.out.println("type: "+type+" move: "+move);
   }
}
class Dog extends Mammals
{
   Dog(String type,String move)
   {
       this.move=move;
       this.type=type;
   }
   void show()
   {
       System.out.println("type: "+type+" move: "+move);
   }
}
class Zoo
{
   public static void main(String args[])
   {
       Animal a=new Animal();
       Reptiles r=new Reptiles();
       Snake r1=new Snake("squamata","crawl");
       Reptiles r2=new Crocodile("crocodilians","crawl");
       Reptiles r3=new Turtle("turtles","walk");
       Mammals m=new Mammals();
       Mammals m1=new Tiger("Carnivore","walk");
       Mammals m2=new Dog("Omnivore","walk");
       Mammals m3=new Buffalo("Herbivore","walk");
       Bird b=new Bird();
       Bird b1=new Parrot("fly","green");
       Bird b2=new Penguin("black","walk");
       Bird b3=new Duck("white","walk","yes");
       r.show();r1.show();r2.show();r3.show();a.show();
       b.show();b1.show();b2.show();b3.show();
       m.show();m1.show();m2.show();m3.show();
      
        
   }
}
output:

Reptiles class
type: squamata move: crawl
type: crocodilians move: crawl
type: turtles move: walk
Animal class
Bird class
move : flycolor :green
move : walkcolor :black
Swim : walk color :white move:yes
Mammals class
type: Carnivore move: walk
type: Omnivore move: walk
type: Herbivore move: walk