asked on

a simple program

Access modifier Description of some methods in the above diagram
# => protected + walk() => takes in no argument, returns no value
+ => public + getName() : String => takes in no arguments, returns a
- => private String value

+ setName( name:String) => takes in one String
argument, returns no value

Question 1 [ 40 marks ]

Based on the above diagram,

a) Create the Animal class, which is the abstract superclass of all animals.
[ 2 marks ]
i. Declare a protected integer attribute called legs, which records the number of legs for this animal. [ 2 marks ]
ii. Define a protected constructor that initializes the legs attribute
[ 2 marks ]
iii. Declare an abstract method eat. [ 2 marks ]
iv. Declare a concrete method walk that displays how the animal walks, including the number of legs. [ 3 marks ]

b) Create the Cat class that inherits from the Animal class. [ 2 marks ]

i. This class has a String attribute to store the name of the pet.
[ 2 marks ]
ii. Define a constructor that takes a String parameter that specifies the cat’s name. This constructor must also call the superclass constructor to specify that all cats have four legs. [ 4 marks ]
iii. Overload the constructor so that this constructor takes no argument, and it calls the constructor in part d(ii) and pass an empty string as the argument. [ 3 marks ]

c) Create the Fish class as specified by the UML diagram above. Override the Animal methods to specify that fish cannot walk and do not have legs.
[ 18 marks ]

Question 2 [ 60 marks ]

Write a program called MyPet that create the Cat and Fish objects and store the objects in a reference-based linked list data structure. You may create a GUI or non-GUI program. Either program will entitle you to a maximum of 15 marks. [ 15 marks ]

This program allows you to

a) create a list of Cat objects, sorted based on its name. Each cat has a unique name. [ 10 marks ]
b) create a list of Fish objects, sorted based on its name. Each fish has a unique name too. [ 5 marks ]
c) display the details of each cat and fish, including what it can do. [ 10 marks ]
d) change the name of your pets [ 10 marks ]

Additional features such as include the status of the fish, delete a dead cat or dead fish, or other functions. [ 10 marks ]

GwynforWeb

..it is also in the wrong TA, this is clearly a Java question.

elroytiow, if you do not do your own home work and learn nothing from your courses will end being unemployable.

COBOLdinosaur

>>>.it is also in the wrong TA,

The real wrong TA it is in; is the cross-posted version in Community Support ...LOL

Cd&

Mayank S

elroytiow,

We would like to see you come up with some initial coding efforts from your own side before we start helping.

elroytiow

ASKER

Below are my coding

import java.io.*;
import javax.swing.*;
import java.awt.*;

class node{
      private string catname;
      private string fishname;
      private node next;
      name=catname;
      name2=fisname;
public void setcatname(string catname){
      catname=newname;
}

public string getcatname(){
      return catname;
}

public void setfishname(string fishname){
      fishname=newfishname;
}

public string getfishname(){
      return fishname;
}

public void setnext(node next){
      next=node next;
}

public node getnext(){
      return next;
}

public interface interfaceSLList{
      public void add(string catname,string fishname);
      public void delete(string name);
      public void search(string name);
      public void printall();
      public int size();
}

public class Mypet implementing interfaceSLList{
      private node head;
      public Mypet(){
            head=null;
      }

      node node1=new node();

      node1.setcatname("Miao");
      node1.setfishname("Nemo");
}

public int size(){
      if(head==null)
            return 0;
      node.probe==head;
      int count=0;
do{
      count=count +1;
      probe=probe.getnext;
}while(probe != null);

return count;
}}

add newnode(){
      node head=null;
      node newnode=new node();
      newnode.setnode();
      head=newnode;
      newnode.setnext(null);
}

public void printall(){
      if(head==null)
      {system.out.println("The list is empty");
      return;}

      node probe=head;
      system.out.println("All item in the list are:");
      do{
            system.out.println("probe.getcatname()+"is cat name"+probe.getfishname()"is fish name");
            probe=probe.getnext();
      }while(probe!=null);
}

public void search(string name){
      if(head==null)
{system.out.println("The list is empty");
}

node.probe=head;
do{
      if(probe.getname().equals(name)){
      system.out.println(name+" is cat name.");
      else
      system.out.println(name2" is fish name.");
      return;
}
probe=probe.getnext();
while(probe!=null);
system.out.println(name&&name2 +"is not in the list");
}
node before=head;
node after=head.getnext();
while(before.getnext()!=null && after.getnext()!=null)
      {
            before=before.getnext();
            after=after.getnext();
}
before.setnext(null);
remove();

ASKER CERTIFIED SOLUTION

Mayank S

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