Question

Your job is to do the following: build a Monster class as your base class, along with two derived classes, Undead and Animal. All Monsters have names and origins. Undead monsters have the year their heart stopped beating. Animals have a species. Your Undead class should be extended to create a Zombie class and a Vampire class. Your Animal Class will extend to include a Werewolf class. Zombies have a favorite weapon, Vampires have a number of humans they have feasted on, and Werewolves have the number of days until their next transformation.

In addition to the attributes above, each class should contain a related speak() and diet() method which prints the monster’s favorite saying and food to standard output, i.e. – zombies say “UUUGGGHHH” (duh) and eat brains.

To convince yourself that polymorphisms works on your demonic creations, in your main method (MosterDrive Class) you should create an ArrayList (called monsterList) of Monsters, and populate the list with 10 instances of Zombies, Vampires, and Werewolves. After you create the list, call Collections.shuffle(monsterList) so that you no longer have any idea where each type of monster is in the list. Your main method will then loop through the ArrayList and for each instance: 1) Print the monster’s name 2) Print the specific type of Monster using the instanceof operator 3) Call the speak() and diet() method on the instance. 4) Display the favorite weapon of zombies, the number of humans a vampire has feasted on, and the number of days until a Werewolf transforms.

I need help to make this in java language.

Answer 1

import java.util.ArrayList;
import java.util.Collections;

class Monster{
   private String name;
   private String origin;
   Monster(String n,String o){
       this.name=n;
       this.origin=o;
   }
   public String getName() {
       return name;
   }
   public void setName(String name) {
       this.name = name;
   }
   public String getOrigin() {
       return origin;
   }
   public void setOrigin(String origin) {
       this.origin = origin;
   }
   void to_String() {
      
   }
  
}
class Undead extends Monster{
   int year;
   Undead(String n, String o,int y) {
       super(n, o);
       this.year=y;
   }
  
}
class Animal extends Monster{
   String species;
   Animal(String n, String o,String s) {
       super(n, o);
       this.species=s;
   }
  
}
class Zombie extends Undead{
   String weapon;
   Zombie(String n, String o, int y,String w) {
       super(n, o, y);
       this.weapon=w;
      
   }
   String speak() {
       return("UUUGGGHHH");
   }
   String diet() {
       return("Eat brains");
   }
   void to_String() {
       System.out.println("Name: "+super.getName()+"\t Type: "+super.getClass()+"\t Speak: "+this.speak()+"\t Diet: "+this.diet()+"\t Weapon: "+this.weapon);
   }
}
class Vampire extends Undead{
   int noOfHumans;
   Vampire(String n, String o, int y,int h) {
       super(n, o, y);
       this.noOfHumans=h;
   }
   String speak() {
       return("GRAAAAAAAAAAH");
   }
   String diet() {
       return("Human blood");
   }
   void to_String() {
       System.out.println("Name: "+super.getName()+"\t Type: "+super.getClass()+"\t Speak: "+this.speak()+"\t Diet: "+this.diet()+"\t No of humans feasted: "+this.noOfHumans);
   }
}
class Werewolf extends Animal{
   int noOfDays;
   Werewolf(String n, String o, String s,int d) {
       super(n, o, s);
       this.noOfDays=d;
   }
   String speak() {
       return("OWWOOOOOOOOOOOOOO");
   }
   String diet() {
       return("Deer");
   }
   void to_String() {
       System.out.println("Name: "+super.getName()+"\t Type: "+super.getClass()+"\t Speak: "+this.speak()+"\t Diet: "+this.diet()+"\t No of days for transformation: "+this.noOfDays);
   }
}
public class MonsterDrive {

   public static void main(String[] args) {
       ArrayList<Monster> m=new ArrayList<Monster>();
       m.add(new Zombie("Z1","O1",1923,"axe"));
       m.add(new Zombie("Z2","O2",1924,"stone"));
       m.add(new Zombie("Z3","O3",1925,"stone"));
       m.add(new Zombie("Z4","O4",1926,"axe"));
       m.add(new Zombie("Z5","O5",1927,"gun"));
       m.add(new Zombie("Z6","O6",1928,"axe"));
       m.add(new Zombie("Z7","O7",1929,"gun"));
       m.add(new Zombie("Z8","O8",1933,"axe"));
       m.add(new Zombie("Z9","O",1934,"axe"));
       m.add(new Zombie("Z10","O10",1936,"stone"));
  
       m.add(new Vampire("V1","O1",1923,1));
       m.add(new Vampire("V2","O2",1924,4));
       m.add(new Vampire("V3","O3",1925,5));
       m.add(new Vampire("V4","O4",1926,6));
       m.add(new Vampire("V5","O5",1927,4));
       m.add(new Vampire("V6","O6",1928,7));
       m.add(new Vampire("V7","O7",1929,8));
       m.add(new Vampire("V8","O8",1933,9));
       m.add(new Vampire("V9","O",1934,3));
       m.add(new Vampire("V10","O10",1936,2));
      
       m.add(new Werewolf("W1","O1","Canis lupus",5));
       m.add(new Werewolf("W2","O2","Canis lupus",10));
       m.add(new Werewolf("W3","O3","Canis lupus",8));
       m.add(new Werewolf("W4","O4","Canis lupus",2));
       m.add(new Werewolf("W5","O5","Canis lupus",8));
       m.add(new Werewolf("W6","O6","Canis lupus",9));
       m.add(new Werewolf("W7","O7","Canis lupus",1));
       m.add(new Werewolf("W8","O8","Canis lupus",10));
       m.add(new Werewolf("W9","O9","Canis lupus",13));
       m.add(new Werewolf("W10","O10","Canis lupus",14));
      
       Collections.shuffle(m);
      
       for(int i=0;i<m.size();i++) {
           m.get(i).to_String();;
       }
   }

}

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OUTPUT
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