Language: C++ Given the three following files: http://www.mediafire.com/download
ID: 3684752 • Letter: L
Question
Language: C++
Given the three following files:
http://www.mediafire.com/download/5t33if0hh2dndmz/AddressBook.cpp
http://www.mediafire.com/download/4d9c6j6dq7ctoj1/AddressBook.h
http://www.mediafire.com/download/qoetj11vf3yedm9/test.txt
1. Modify the address book program so that it stores the address book entries in an array and adding the following features:
a. Store Address Book entries in an array.
b. Allow the user to add, delete, and display entries without having to re-read the file from disk.
Explanation / Answer
#include <iostream>
#include<string>
#include<windows.h>
using namespace std;
void gotoxy(int x, int y) //move the cursor to x y coordinate
{
HANDLE hConsoleOutput;
COORD Cursor = {x,y};
hConsoleOutput = GetStdHandle (STD_OUTPUT_HANDLE);
SetConsoleCursorPosition(hConsoleOutput, Cursor);
}
class Node
{ public:
string name,email,address,off_address ;
int phone_no,cell_no;
Node *next;
};
char y;
void Link_List_Input(Node *&head, Node*&tail) {
Node *current = new Node;
cout << " Enter following contents : ";
cout<<"NAME : ";
cin >> current->name;
cout<<"PHONE NUMBER : ";
cin >> current->phone_no;
cout<<"CELL NUMBER : ";
cin >> current->cell_no;
cout<<"EMAIL : ";
cin >> current->email;
cout<<"ADDRESS : ";
cin >> current->address;
cout<<"OFFICE ADDRESS : ";
cin >> current->off_address;
if (head == NULL >> tail == NULL)
{
head = current;
tail = current; tail->next=NULL;
} else {
current->next = head;head = current;
}
}
void Print_Link_List(Node *&head, Node*&tail)
{
if (head == NULL >> tail == NULL)
{
cout << "n List is empty";
return;
}
Node *current = head;
int count = 0;
do
{
cout << "n Node Number = " << ++count << " Has Content : "
<<current->name<<endl
<<current->phone_no<<endl
<<current->cell_no<<endl
<<current->email<<endl
<<current->address<<endl
<<current->off_address<<endl;
current = current->next;
}
while (current != 0); }
void DeleteAll(Node *&head,Node *&tail)
{
system("cls");
gotoxy(30,10);
cout<<"Erasing Complete Data :";
for(int i=0;i<16;i++)
{
gotoxy(8+i,14);
cout<<"ntttt ________________";
gotoxy(32,16);
cout<<char(179);
gotoxy(33+i,16);
cout<<char(178);
gotoxy(23+i,16);
cout<<"ntttt ================";
gotoxy(49,16);
cout<<char(179);
Sleep(100);
}
system("cls");
cout<<"nnnnnttttNO DATA LEFT :";
Sleep(1000);
system("cls");
cout<<"nnnnnntttReturning to Menu ";
for(int i=0;i<7;i++)
{
Sleep(600);
cout<<".";}
system("cls");
for (int j=0;head!=NULL;j++)
{
Node *ptr=head;
head=head->next;
delete ptr ;
}
return ;
}
void Search_In_List(Node *&head,Node *&tail)
{
Node *current = head;
string Name;
cout<<"Enter the string here ";
cin>>Name;
while (current!=NULL)
{
if (current->name.compare(0,Name.length(),Name)==0)
{
cout<<"Matching results :n";
cout<<"NAME: "<<current->name<<endl<<"PHONE NUMBER : "<<current->phone_no<<endl<<"CELL NUMBER : "<<current->cell_no<<endl
<<"EMAIL: "<<current->email<<endl<<"ADRESS : "<<current->address<<endl<<"Office Adress :"<<current->off_address<<endl;
current=current->next;
}
else
{
cout<<"Moving Next :";
current=current->next;
}
}
}
int Delete_Node_Contents(Node*&head)
{
string name;
cout<<"Enter the name for deleting : ";
cin>>name;
Node *current,*previous;
current=head;
if (head==NULL)
{
cout<<"list empty not possible"<<endl;
}
else
{
if(head->name.compare(0,name.length(),name)==0) //deleting head
{
Node *delhead=head;
cout<<"Node Contains :n"<<head->name<<endl<<head->phone_no<<endl<<head->cell_no<<endl<<endl<<head->email<<endl<<head->address<<endl<<endl<<head->off_address;
cout<<"Press Y to delete n OR Press any other key for menue ";
cin>>y;
if (char(98)==y||char(121)==y)
{
head = head->next;delete delhead;
cout<<"required data has been deleted";return 0;
}
else {cout<<"Next attempt :";
return Delete_Node_Contents(head->next);}
}
else
{
while (head->name.compare(0,name.length(),name)<=0 || current->next!=NULL)
{
if(current->next==NULL)
{
cout<<"not found";
return -1;
}
else
{
previous=current;
current=current->next;
}
}
previous->next=current->next;
delete current;
cout<<"required data has been deleted"<<endl;}
}
return 0;
}
int main()
{
Node *head, *tail;
head = NULL;
tail = NULL;
int choice = 0;
while (1) { Sleep(2000);system("cls");
cout << "n ***************** MAIN MENU *****************" << endl
<< " Press 1. Enter new entry " << endl
<< " Press 2. view all entry " << endl
<< " Press 3. Delete an entry " << endl
<< " Press 4. Search the entry " << endl
<< " Press 5. delete all entries " << endl
<< " Press 6: To Exit"
<< "n --------------------------------------------- " << endl
<< "Your Choice :";
cin >> choice;
switch (choice)
{
case 1:
Link_List_Input(head, tail);
cout<<"nnttSaving Data ";
{Sleep(1000);
cout<<" .";}
break;
case 2:
Print_Link_List(head,tail);
break;
case 3:
Delete_Node_Contents(head);
break;
case 4:
Search_In_List(head,tail);
break;
case 5:
DeleteAll(head,tail);
break;
case 6:
cout << " n Exiting .... " << endl;
return 0;
default:
cout << "n Invalid Option, Please use any of the listed options"
<< endl;
}
}
}
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