I need help with question 4 5a and 5b You can only answer on

I need help with question 4, 5a, and 5b. You can only answer one if you want I would appreciate any help, thank you!

// Q1a: Create Dog Class

// Part 1: Create a child class of the Pet class named \'Dog\'

// See the add function in hw10.cpp for proper use of this function.

// Part2: Declare constructor which accepts the same 3 parameters as the parent class Pet.

// Pass the 3 parameters to the super constructor in the Pet class.

// Part 3: Re-declare the method display (virtual method found inside of parent class Pet)

// Q2a: Define Display for Dog class

// Define the method display that you declared within the Dog class in the header file

// Information should be printed in the following format:

// Name:

// Breed:

// Type: Dog

// (See the print_all function in hw10.cpp for proper use of this function.)

// READ BEFORE YOU START:

// You are given a partially completed program that creates a list of pets.

// Each pet has the corresponding information: name, breed, and type.

// In the Pet.h file, you will find the definition for this enum \'type\'.

// Pets on the list can be 2 different \'types\' : either a dog or a cat.

// The classes Dog and Cat are subclasses of the Pet class (found in Pet.h).

// Both of these classes will have their own use of the virtual display method.

// To begin, you should trace through the given code and understand how it works.

// Please read the instructions above each required function and follow the directions carefully.

// If you modify any of the given code, the return types, or the parameters, you risk failing the automated test cases.

// You are to assume that all input is valid:

// Valid name: String containing alphabetical letters beginning with a capital letter

// Valid breed: String containing alphabetical letters beginning with a capital letter

// All input will be a valid length and no more than the allowed amount of memory will be used

#include \"Container.h\"

#include \"Pet.h\"

#include \"Dog.h\"

#include \"Cat.h\"

#include

using namespace std;

// forward declarations

void flush();

void branching(char);

void helper(char);

void add_pet(string, string, Type);

Pet* search_pet(string, string, Type);

void remove_pet(string, string, Type);

void remove_all();

void print_all();

void save(string); // 10 points

void load(string); // 10 points

Container* list = NULL; // global list

int main()

{

_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF); // Use to check for memory leaks in VS

load(\"Pets.txt\");

char ch = \'i\';

do {

cout << \"Please enter your selection\" << endl;

cout << \"\\ta: add a new pet to the list\" << endl;

cout << \"\\tc: change the breed of a pet\" << endl;

cout << \"\\tr: remove a pet from the list\" << endl;

cout << \"\\tp: print all pets on the list\" << endl;

cout << \"\\tq: quit and save list of pets\" << endl;

cin >> ch;

flush();

branching(ch);

} while (ch != \'q\');

save(\"Pets.txt\");

remove_all();

list = NULL;

return 0;

}

void flush()

{

int c;

do c = getchar(); while (c != \'\ \' && c != EOF);

}

void branching(char c)

{

switch (c) {

case \'a\':

case \'c\':

case \'r\':

case \'p\':

helper(c);

break;

case \'q\':

break;

default:

printf(\"\ Invalid input!\ \ \");

}

// The helper function is used to determine how much data is needed and which function to send that data to.

// It uses pointers and values that are returned from some functions to produce the correct ouput.

// There is no implementation needed here, but you should study this function and know how it works.

// It is always helpful to understand how the code works before implementing new features.

// Do not change anything in this function or you risk failing the automated test cases.

void helper(char c)

{

string name, breed;

Type type;

int type_check = -1;

if (c == \'p\')

print_all();

else

{

cout << endl << \"Please enter the pet\'s name: \" << endl;

cin >> name;

cout << \"Please enter the pet\'s breed: \" << endl;

cin >> breed;

while (!(type_check == 0 || type_check == 1))

{

cout << endl << \"Please select one of the following: \" << endl;

cout << \"0. Dog \" << endl;

cout << \"1. Cat\" << endl;

cin >> type_check;

}

type = (Type)type_check;

Pet* pet_result = search_pet(name, breed, type);

if (c == \'a\') // add pet

{

if (pet_result == NULL)

{

add_pet(name, breed, type);

cout << endl << \"Pet added.\" << endl << endl;

}

else

cout << endl << \"Pet already on list.\" << endl << endl;

}

else if (c == \'c\') // change pet breed

{

if (pet_result == NULL)

{

cout << endl << \"Pet not found.\" << endl << endl;

return;

}

cout << endl << \"Please enter the new breed for this pet: \" << endl;

cin >> breed; flush();

// Q3c: Call Change Breed Function

cout << endl << \"Pet\'s breed changed.\" << endl << endl;

}

else if (c == \'r\') // remove pet

{

if (pet_result == NULL)

{

cout << endl << \"Pet not found.\" << endl << endl;

return;

}

remove_pet(name, breed, type);

cout << endl << \"Pet removed from the list.\" << endl << endl;

}

// Q3b: Define Friend Function Change Breed

// Define the function changeBreed that is declared within the Pet.h file.

// This function sets the breed value of the Pet pointer to the value of the string parameter.

// Q4: Add Pet

// This function will be used to add a new pet to the tail of the global linked list.

// You will need to use the enum ëtypeí variable to determine which constructor to use.

// Remember that search is called before this function, therefore, the new pet is not on the list.

void add_pet(string name, string breed, Type type)

{

}

// No implementation needed here, however it may be helpful to review this function

Pet* search_pet(string name, string breed, Type type)

{

Container* container_traverser = list;

while (container_traverser != NULL)

{

if (container_traverser->pet->getName() == name

&& container_traverser->pet->getBreed() == breed

&& container_traverser->pet->getType() == type)

return container_traverser->pet;

container_traverser = container_traverser->next;

}

return NULL;

}

// No implementation needed here, however it may be helpful to review this function

void remove_pet(string name, string breed, Type type)

{

Container* to_be_removed;

if (list->pet->getName() == name

&& list->pet->getBreed() == breed

&& list->pet->getType() == type)

{

to_be_removed = list;

list = list->next;

delete to_be_removed->pet;

delete to_be_removed;

return;

}

Container* container_traverser = list->next;

Container* container_follower = list;

while (container_traverser != NULL)

{

if (container_traverser->pet->getName() == name

&& container_traverser->pet->getBreed() == breed

&& container_traverser->pet->getType() == type)

{

to_be_removed = container_traverser;

container_traverser = container_traverser->next;

container_follower->next = container_traverser;

delete to_be_removed->pet;

delete to_be_removed;

return;

}

container_follower = container_traverser;

container_traverser = container_traverser->next;

}

// No implementation needed here, however it may be helpful to review this function

void remove_all()

{

while (list != NULL)

{

Container* temp = list;

list = list->next;

delete temp->pet;

delete temp;

}

// This function uses the virtual display() method of the Dog and Cat classes to print all Pets in an oragnized format.

void print_all()

{

Container *container_traverser = list;

if (list == NULL)

cout << endl << \"List is empty!\" << endl << endl;

while (container_traverser != NULL)

{

container_traverser->pet->display();

container_traverser = container_traverser->next;

}

// Q5a: Save (5 points)

// Save the linked list of pets to a file using ofstream.

// You will need to come up with a way to store the amount of Containers in linked list.

// Hint: You may want to cast the enum \'type\' to an int before writing it to the file.

void save(string fileName)

{

}

// Q5b: Load (5 points)

// Load the linked list of pets from a file using ifstream.

// You will need to create the linked list in the same order that is was saved to a file.

// You will need to create a new node for the linked list, then add it to the tail of the list.

// Hint: If you casted the enum \'type\' to an int, you will need to cast it back to a \'Type\'.

// You will use the \'type\' variable read from the file to determine which constructor to use.

void load(string fileName)

{

}

Here is the updated code for the question. Since you have not pasted the code for the header files Container.h, Pet.h, Dog.h and Cat.h, I had to create my own versions of these files. But you may use your own files for those and just use the code for Q4, Q5a and Q5b i.e. add_pet(), load() and save() functions alone.

#include \"Container.h\"
#include \"Pet.h\"
#include \"Dog.h\"
#include \"Cat.h\"
#include <iostream>
#include <fstream>
//#include
using namespace std;
// forward declarations
void flush();
void branching(char);
void helper(char);
void add_pet(string, string, Type);
Pet* search_pet(string, string, Type);
void remove_pet(string, string, Type);
void remove_all();
void print_all();
void save(string); // 10 points
void load(string); // 10 points
Container* list = NULL; // global list
int main()
{
_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF); // Use to check for memory leaks in VS
load(\"Pets.txt\");
char ch = \'i\';
do {
cout << \"Please enter your selection\" << endl;
cout << \"\\ta: add a new pet to the list\" << endl;
cout << \"\\tc: change the breed of a pet\" << endl;
cout << \"\\tr: remove a pet from the list\" << endl;
cout << \"\\tp: print all pets on the list\" << endl;
cout << \"\\tq: quit and save list of pets\" << endl;
cin >> ch;
flush();
branching(ch);
} while (ch != \'q\');
save(\"Pets.txt\");
remove_all();
list = NULL;
return 0;
}
void flush()
{
int c;
do c = getchar(); while (c != \'\ \' && c != EOF);
}
void branching(char c)
{
switch (c) {
case \'a\':
case \'c\':
case \'r\':
case \'p\':
helper(c);
break;
case \'q\':
break;
default:
printf(\"\ Invalid input!\ \ \");
}
}
// The helper function is used to determine how much data is needed and which function to send that data to.
// It uses pointers and values that are returned from some functions to produce the correct ouput.
// There is no implementation needed here, but you should study this function and know how it works.
// It is always helpful to understand how the code works before implementing new features.
// Do not change anything in this function or you risk failing the automated test cases.
void helper(char c)
{
string name, breed;
Type type;
int type_check = -1;
if (c == \'p\')
print_all();
else
{
cout << endl << \"Please enter the pet\'s name: \" << endl;
cin >> name;
cout << \"Please enter the pet\'s breed: \" << endl;
cin >> breed;
while (!(type_check == 0 || type_check == 1))
{
cout << endl << \"Please select one of the following: \" << endl;
cout << \"0. Dog \" << endl;
cout << \"1. Cat\" << endl;
cin >> type_check;
}
type = (Type)type_check;
Pet* pet_result = search_pet(name, breed, type);
if (c == \'a\') // add pet
{
if (pet_result == NULL)
{
add_pet(name, breed, type);
cout << endl << \"Pet added.\" << endl << endl;
}
else
cout << endl << \"Pet already on list.\" << endl << endl;
}
else if (c == \'c\') // change pet breed
{
if (pet_result == NULL)
{
cout << endl << \"Pet not found.\" << endl << endl;
return;
}
cout << endl << \"Please enter the new breed for this pet: \" << endl;
cin >> breed; flush();
// Q3c: Call Change Breed Function
cout << endl << \"Pet\'s breed changed.\" << endl << endl;
}
else if (c == \'r\') // remove pet
{
if (pet_result == NULL)
{
cout << endl << \"Pet not found.\" << endl << endl;
return;
}
remove_pet(name, breed, type);
cout << endl << \"Pet removed from the list.\" << endl << endl;
}
}
}
// Q3b: Define Friend Function Change Breed
// Define the function changeBreed that is declared within the Pet.h file.
// This function sets the breed value of the Pet pointer to the value of the string parameter.
// Q4: Add Pet
// This function will be used to add a new pet to the tail of the global linked list.
// You will need to use the enum ëtypeí variable to determine which constructor to use.
// Remember that search is called before this function, therefore, the new pet is not on the list.
void add_pet(string name, string breed, Type type)
{
Pet *p;

if(type == DOG)
{
p = new Dog(name, breed, type);
}
else //if not dog , its a cat
{
p = new Cat(name, breed, type);
}

Container *new_container = new Container();
new_container -> pet = p;
new_container -> next = NULL;

if(list == NULL)
{
list = new_container;
return ;
}

Container* container_traverser = list;
while (container_traverser->next != NULL)
{
container_traverser = container_traverser->next;
}

container_traverser->next = new_container;
}
// No implementation needed here, however it may be helpful to review this function
Pet* search_pet(string name, string breed, Type type)
{
Container* container_traverser = list;
while (container_traverser != NULL)
{
if (container_traverser->pet->getName() == name
&& container_traverser->pet->getBreed() == breed
&& container_traverser->pet->getType() == type)
return container_traverser->pet;
container_traverser = container_traverser->next;
}
return NULL;
}
// No implementation needed here, however it may be helpful to review this function
void remove_pet(string name, string breed, Type type)
{
Container* to_be_removed;
if (list->pet->getName() == name
&& list->pet->getBreed() == breed
&& list->pet->getType() == type)
{
to_be_removed = list;
list = list->next;
delete to_be_removed->pet;
delete to_be_removed;
return;
}
Container* container_traverser = list->next;
Container* container_follower = list;
while (container_traverser != NULL)
{
if (container_traverser->pet->getName() == name
&& container_traverser->pet->getBreed() == breed
&& container_traverser->pet->getType() == type)
{
to_be_removed = container_traverser;
container_traverser = container_traverser->next;
container_follower->next = container_traverser;
delete to_be_removed->pet;
delete to_be_removed;
return;
}
container_follower = container_traverser;
container_traverser = container_traverser->next;
}
}
// No implementation needed here, however it may be helpful to review this function
void remove_all()
{
while (list != NULL)
{
Container* temp = list;
list = list->next;
delete temp->pet;
delete temp;
}
}
// This function uses the virtual display() method of the Dog and Cat classes to print all Pets in an oragnized format.
void print_all()
{
Container *container_traverser = list;
if (list == NULL)
cout << endl << \"List is empty!\" << endl << endl;
while (container_traverser != NULL)
{
container_traverser->pet->display();
container_traverser = container_traverser->next;
}
}
// Q5a: Save (5 points)
// Save the linked list of pets to a file using ofstream.
// You will need to come up with a way to store the amount of Containers in linked list.
// Hint: You may want to cast the enum \'type\' to an int before writing it to the file.
void save(string fileName)
{
//we will store the file in this format, first a line containing the type of pet is written
//then next line has the pet\'s name, and then the next line has the pet\'s breed.
//we choose to write each information on a separate line to allow the possiblity of having spaces
//in pet name and breed. The 3 lines repeat for each pet.
ofstream outfile(fileName.c_str());
Container *container_traverser = list;
if(!outfile.is_open())
{
cout<<\"Could not open output file for writing : \"<<fileName<<endl;
return;
}
while(container_traverser != NULL)
{
outfile<<(int)(container_traverser -> pet ->getType())<<\" \";
outfile<<container_traverser -> pet -> getName()<<\" \";
outfile<<container_traverser -> pet -> getBreed()<<endl;

container_traverser = container_traverser -> next;
}
outfile.close();
}
// Q5b: Load (5 points)
// Load the linked list of pets from a file using ifstream.
// You will need to create the linked list in the same order that is was saved to a file.
// You will need to create a new node for the linked list, then add it to the tail of the list.
// Hint: If you casted the enum \'type\' to an int, you will need to cast it back to a \'Type\'.
// You will use the \'type\' variable read from the file to determine which constructor to use.
void load(string fileName)
{
string name, breed;
int type;
ifstream infile(fileName);

if(!infile.is_open())
{
cout<<\"Error opening input file : \"<<fileName<<endl;
return;
}
int idx;
while(infile>>type)
{
infile >> name >>breed;
Type t=(Type)type;
add_pet(name, breed, t);
}
infile.close();
}

My version of other header files....

Pet.h

#ifndef PET_H
#define PET_H
#include <iostream>
using namespace std;
enum Type {DOG, CAT};
class Pet
{
private:
string name, breed;
Type type;
public:
Pet(string n, string b, Type t):name(n),breed(b),type(t)
{}

string getName()
{
return name;
}
string getBreed()
{
return breed;
}

Type getType()
{
return type;
}

virtual void display()
{

}
};
#endif

Dog.h

#ifndef DOG_H
#define DOG_H
#include \"Pet.h\"
class Dog : public Pet
{
public:
Dog(string n, string b, Type t):Pet(n, b, t){};
void display()
{
cout<<\"Name: \"<<getName() <<endl;
cout<<\"Breed: \"<<getBreed() <<endl;
cout<<\"Type: Dog\"<<endl;
}
};
#endif

Cat.h

#ifndef CAT_H
#define CAT_H
#include \"Pet.h\"
class Cat : public Pet
{
public:
Cat(string n, string b, Type t):Pet(n, b, t){};
void display()
{
cout<<\"Name: \"<<getName() <<endl;
cout<<\"Breed: \"<<getBreed() <<endl;
cout<<\"Type: Cat\"<<endl;
}
};
#endif

Container.h

#ifndef CONTAINER_H
#define CONTAINER_H
#include \"Pet.h\"

class Container
{
public:
Pet *pet;
Container *next;

};
#endif

output

Error opening input file : Pets.txt
Please enter your selection
   a: add a new pet to the list
   c: change the breed of a pet
   r: remove a pet from the list
   p: print all pets on the list
   q: quit and save list of pets
a

Please enter the pet\'s name:
Sheru
Please enter the pet\'s breed:
Pug

Please select one of the following:
0. Dog
1. Cat
0

Pet added.

Please enter your selection
   a: add a new pet to the list
   c: change the breed of a pet
   r: remove a pet from the list
   p: print all pets on the list
   q: quit and save list of pets
a

Please enter the pet\'s name:
Scisor
Please enter the pet\'s breed:
Bulldog

Please select one of the following:
0. Dog
1. Cat
0

Pet added.

Please enter your selection
   a: add a new pet to the list
   c: change the breed of a pet
   r: remove a pet from the list
   p: print all pets on the list
   q: quit and save list of pets
a

Please enter the pet\'s name:
Sweety
Please enter the pet\'s breed:
Persian

Please select one of the following:
0. Dog
1. Cat
1

Pet added.

Please enter your selection
   a: add a new pet to the list
   c: change the breed of a pet
   r: remove a pet from the list
   p: print all pets on the list
   q: quit and save list of pets
p
Name: Sheru
Breed: Pug
Type: Dog
Name: Scisor
Breed: Bulldog
Type: Dog
Name: Sweety
Breed: Persian
Type: Cat
Please enter your selection
   a: add a new pet to the list
   c: change the breed of a pet
   r: remove a pet from the list
   p: print all pets on the list
   q: quit and save list of pets
q