You are asked to implement the following C++ strings class

Here is the class interface and an example main program:

#include

#include

using namespace std;

class StringList

{

public:

StringList();

// Creates a new, empty, list

StringList(string init[], int size);

// Creates a new list, initialized from the given values

StringList(const StringList& other);

// Copy constructor

void addEntry(string str);

// Adds a string to the list

void displayAllEntry () const;

// Diaplay all strings from the list

int countEntry() const;

// Returns the number of strings in the list

string get(int idx) const;

// Returns the string at the given index

void set(int idx, string str);

// Sets the string at the given index

~StringList();

// Destroys the list, releasing any allocated memory

void operator=(const StringList& right_side);

// Assignment operator

private:

string *list;

int size;

};

int main()

{

// Make an array and put some names in it

int init_names_size = 5;

string init_names[init_names_size];

init_names[0] = "Ahmad";

init_names[1] = "Wiggum";

init_names[2] = "Natasha";

init_names[3] = "Layla";

// Make two lists, one with each constructor

StringList names(init_names, 5), list;

cout << "Initial list:" << endl;

names.displayAllEntry();

// Add and remove some names

names.addEntry("Iyad");

cout << "After adding a name:" << endl;

names.displayAllEntry();

names.addEntry("Muntz");

cout << "After adding another name:" << endl;

names.displayAllEntry();

names.addEntry("Burns");

names.addEntry("Sameer");

cout << "After adding three names:" << endl;

names.displayAllEntry();

cout << endl << "An empty list created with the default constructor:"

<< endl;

list.displayAllEntry();

list.addEntry("Milhouse");

list.addEntry("Hind");

cout << "After adding two entries:" << endl;

list.displayAllEntry();

list.set(0, "Jimbo");

cout << "After changing the first entry:" << endl;

list.displayAllEntry();

cout << endl << "After assigning first list to the second list: " << endl;

list = names;

list.displayAllEntry();

cout << "First list (again): " << endl;

names.displayAllEntry();

cout << endl << "A third list, created with the copy constructor: " << endl;

StringList list_copy(list);

list_copy.displayAllEntry();

return 0;

}