C++ assignment help! The instructions are below, i included the main driver, i just need help...
C++ assignment help!
The instructions are below, i included the main driver, i just need help with calling the functions in the main function
This assignment will access your skills using C++ strings and dynamic arrays. After completing this assignment you will be able to do the following: (1) allocate memory dynamically, (2) implement a default constructor, (3) insert and remove an item from an unsorted dynamic array of strings, (4) use the string class member functions, (5) implement a copy constructor, (6) overload the assignment operator, (7) overload the insertion operator, (8) search an array, (9) change the size of a dynamic array, (10) write function and program headers, (11) implement a destructor, and (12) implement a destructor. 1. For this assignment you will need the following files which are given: a. The file “dynamic_array_driver.cpp” contains the declaration and implementation for the dynamic array class “tlist”. b. The file “ourData.txt” contains input data for the program. c. The file “dynamic_array_output.txt” contains the output that the main program you write will produce when you add it to the file “dynamic_array_driver.cpp”. 2. Comment every item in the private and private areas of the class declaration. Be specific in your choice of words. Consider the following as appropriate comments for some of the items in the class declaration: a. Destructor b. Copy construction c. Delete an item from the dynamic array … d. Overloaded assignment operator as a member function with chaining.. e. The dynamic array 3. Write the program header for the program “dynamic_array_driver.cpp”. 4. Write a function header for each function in the class declaration (see file “dynamic_array_driver.cpp”). Each function header should be placed above the function implementation; the code that is provided is enough information for you to write correct function headers. Remember, function headers should include the function name, precondition, post-condition, and function description. 5. Write a main program to produce the output, exactly, as in the file “dynamic_array_output.txt”. Use the file “ourData.txt” for input to your program. The body of your main program (which you will add to the file “dynamic_array_driver.cpp”) should have no more than 20 lines of code; this includes blank lines. The key to doing a good job on this assignment, is to read and understand the code that is provided. Hint: any output and/or messages should be done inside the functions of the class. Your main program should only use “cout” when invoking (calling) the overloaded insertion operator (<<).
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
class tlist
{
public:
tlist();//default
~tlist();
tlist(const tlist &);
bool IsEmpty();
bool IsFull();
int Search(const string &);
void Insert(const string &);
void Remove(const string &);
void Triple_size();
tlist & operator=(const tlist &);
friend ostream & operator<<(ostream &, const tlist &);
private:
string *DB;
int count;
int capacity;
};
//***************************Sample Header Format**********************
// Function Name: Default Constructor
// Pre-Condition: The count, capacity and the dynamic array DB have not been
initialized.
// Post-Condition:The count, capacity and the dynamic array DB have been
initialized.
// Description:The default constructor initializes that state of the class.
//
//********************************************************************
tlist::tlist()
{
string s;
ifstream input;
input.open("ourData.txt");
if (input.fail())
{
cout << "problem with input data file\n";
exit(1);
}
cout << "\n\nDefault Constructor Invoked\n"
<< "***************************\n\n";
count = 0;
capacity = 1;
DB = new string[capacity];
IsEmpty();
while (!input.eof())
{
input >> s;
Insert(s);
}
input.close();
}
tlist::~tlist()
{
cout << "\n\nDestructor Invoked\n"
<< "*******************\n\n";
delete[] DB;
}
tlist::tlist(const tlist & org)
{
cout << "\n\nCopy Constructor Invoked\n"
<< "*************************\n\n";
count = org.count;
capacity = org.capacity;
DB = new string[capacity];
for (int i = 0; i < count; i++)
{
DB[i] = org.DB[i];
}
}
bool tlist::IsEmpty()
{
cout << "\n\nIsEmpty Invoked\n"
<< "****************\n\n";
return count == 0;
}
bool tlist::IsFull()
{
cout << "\n\nIsFull Invoked\n"
<< "***************\n\n";
return count == capacity;
}
int tlist::Search(const string & key)
{
for (int i = 0; i < count; i++)
{
if (DB[i] == key)
{
return i;
}
}
return -1;
}
void tlist::Insert(const string & key)
{
if (IsFull())
{
Triple_size();
}
DB[count++] = key;
}
void tlist::Remove(const string & key)
{
int i = Search(key);
if (i == -1)
{
if (IsEmpty())
{
cout << "DB is empty\n\n";
}
else
{
cout << key << " not in DB\n\n";
}
}
else
{
for (int j = i; j < count - 1; j++)
{
DB[j] = DB[j + 1];
}
cout << key << " found and deleted\n\n";
count--;
}
}
void tlist::Triple_size()
{
cout << "\n\nTriple_size Invoked\n"
<< "***************************\n\n";
capacity *= 3;
string *temp = new string[capacity];
for (int i = 0; i < count; i++)
{
temp[i] = DB[i];
}
delete[] DB;
DB = temp;
}
tlist & tlist::operator=(const tlist & org)
{
cout << "\n\noverloaded assignment operator (=) Invoked\n"
<< "***************************\n\n";
if (this != &org)
{
delete[](*this).DB;
(*this).count = org.count;
(*this).capacity = org.count;
(*this).DB = new string[(*this).capacity];
for (int i = 0; i < (*this).count; i++)
{
(*this).DB[i] = org.DB[i];
}
}
return *this;
}
ostream & operator<<(ostream & cout, const tlist & org)
{
for (int i = 0; i < org.count; i++)
{
cout << org.DB[i] << endl;
}
return cout;
}
int main()
{
//YOUR ADD YOUR CODE FOR MAIN HERE
return 0;
}
"ourData.txt" file:
cloud
azure
microsoft
sql
database
firefox
netscape
myworld
algorithm
object
class
seacrest
multiplicity
associativity
amazon
Homework Answers
/* THE THING IS YOU ONLY HAVE TO CREATE OBJECT OF CLASS AND COUT IT EVERYFUNCTION WILL INVOKED ITESELF BY CONSTRUCTOR ITSELF */
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
class tlist
{
public:
tlist();//default
~tlist();
tlist(const tlist &);
bool IsEmpty();
bool IsFull();
int Search(const string &);
void Insert(const string &);
void Remove(const string &);
void Triple_size();
tlist & operator=(const tlist &);
friend ostream & operator<<(ostream &, const tlist &);
private:
string *DB;
int count;
int capacity;
};
//***************************Sample Header Format**********************
// Function Name: Default Constructor
// Pre-Condition: The count, capacity and the dynamic array DB have not been
//initialized.
// Post-Condition:The count, capacity and the dynamic array DB have been
//initialized.
// Description:The default constructor initializes that state of the class.
//
//********************************************************************
tlist::tlist()
{
string s;
ifstream input;
input.open("ourData.txt");
if (input.fail())
{
cout << "problem with input data file\n";
exit(1);
}
cout << "\n\nDefault Constructor Invoked\n"
<< "***************************\n\n";
count = 0;
capacity = 1;
DB = new string[capacity];
IsEmpty();
while (!input.eof())
{
input >> s;
Insert(s);
}
input.close();
}
tlist::~tlist()
{
cout << "\n\nDestructor Invoked\n"
<< "*******************\n\n";
delete[] DB;
}
tlist::tlist(const tlist & org)
{
cout << "\n\nCopy Constructor Invoked\n"
<< "*************************\n\n";
count = org.count;
capacity = org.capacity;
DB = new string[capacity];
for (int i = 0; i < count; i++)
{
DB[i] = org.DB[i];
}
}
bool tlist::IsEmpty()
{
cout << "\n\nIsEmpty Invoked\n"
<< "****************\n\n";
return count == 0;
}
bool tlist::IsFull()
{
cout << "\n\nIsFull Invoked\n"
<< "***************\n\n";
return count == capacity;
}
int tlist::Search(const string & key)
{
for (int i = 0; i < count; i++)
{
if (DB[i] == key)
{
return i;
}
}
return -1;
}
void tlist::Insert(const string & key)
{
if (IsFull())
{
Triple_size();
}
DB[count++] = key;
}
void tlist::Remove(const string & key)
{
int i = Search(key);
if (i == -1)
{
if (IsEmpty())
{
cout << "DB is empty\n\n";
}
else
{
cout << key << " not in DB\n\n";
}
}
else
{
for (int j = i; j < count - 1; j++)
{
DB[j] = DB[j + 1];
}
cout << key << " found and deleted\n\n";
count--;
}
}
void tlist::Triple_size()
{
cout << "\n\nTriple_size Invoked\n"
<< "***************************\n\n";
capacity *= 3;
string *temp = new string[capacity];
for (int i = 0; i < count; i++)
{
temp[i] = DB[i];
}
delete[] DB;
DB = temp;
}
tlist & tlist::operator=(const tlist & org)
{
cout << "\n\noverloaded assignment operator (=) Invoked\n"
<< "***************************\n\n";
if (this != &org)
{
delete[](*this).DB;
(*this).count = org.count;
(*this).capacity = org.count;
(*this).DB = new string[(*this).capacity];
for (int i = 0; i < (*this).count; i++)
{
(*this).DB[i] = org.DB[i];
}
}
return *this;
}
ostream & operator<<(ostream & cout, const tlist & org)
{
for (int i = 0; i < org.count; i++)
{
cout << org.DB[i] << endl;
}
return cout;
}
int main()
{
//YOUR ADD YOUR CODE FOR MAIN HERE
tlist obj;
cout<<obj;
return 0;
}
/* SCREENSHOT */
/* PLEASE UPVOTE */
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The instructions are below, i included the main driver, i just
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