//HEADER FILES
#include<iostream.h>
#include<fstream.h>
#include<conio.h>
#include<stdio.h>
#include<string.h>
#include<iomanip.h>
#include<dos.h>
struct node //The basic linked node declaration
{
unsigned long recno;
char pin[15];
char name[64];
node *link;
} *first,*ptr1,*ptr2,*ptr,*temp;
class person //The global class from which we are managing the file "phoneno.dat"
{
private:unsigned long record_id;
char person_name[64];
char res_address[64];
char res_pincode[15];
char res_phone_no1[15];
char occu_pation[25];
char company_name[25];
char off_address[25];
char off_pincode[15];
char off_phone_no1[15];
public:
person() //default constructor
{
record_id=0;
strcpy(person_name,"");
strcpy(res_address,"");
strcpy(res_pincode,"");
strcpy(res_phone_no1,"");
strcpy(occu_pation,"");
strcpy(company_name,"");
strcpy(off_address,"");
strcpy(off_pincode,"");
strcpy(off_phone_no1,"");
}
unsigned long get_rec_no();
void get_data();
void show_data();
void add_object();
void make_index();
void sort_name();
void sort_recno();
void sort_pin();
void show_object();
void sort_print();
void del_object();
void modify_object();
void search_object();
void sort_object();
void reports();
}pers;
unsigned long person::get_rec_no() //gets the lowest +ve unclaimed record id
{
int found=0;
unsigned long rec_no,temp_recno;
struct node1
{
unsigned long recno;
node1 *link;
};
node1 *start,*ptr,*ptr1,*ptr2;
fstream infile;
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0,ios::end);
int n=infile.tellg();
infile.close();
if(n==0)
rec_no=1;
else
{
infile.open("phoneno.dat",ios::in|ios::binary);
start=ptr=new node1;
infile.seekg(0,ios::beg);
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
ptr->recno=record_id;
ptr->link=new node1;
ptr=ptr->link;
infile.read((char*)&pers,sizeof(pers));
}
ptr->link=NULL;
ptr1=start;
while(ptr1->link!=NULL) //find the largest occupied record no
{
ptr2=ptr1->link;
while(ptr2!=NULL)
{
if(ptr2->recno < ptr1->recno)
{
temp_recno=ptr2->recno;
ptr2->recno=ptr1->recno;
ptr1->recno=temp_recno;
}
ptr2=ptr2->link;
}
ptr2=ptr1->link;
ptr1=ptr2;
}
ptr1=start;
while(ptr1!=NULL && found!=1)
{
ptr2=ptr1;
ptr1=ptr1->link;
if((ptr2->recno)+1!=ptr1->recno)
{
rec_no=(ptr2->recno)+1;
found=1;
}
}
if(found!=1)rec_no=(ptr2->recno)+1;
ptr=start;
//clear up the memory lest memory leaks
while(start!=NULL)
{
start=start->link;
delete ptr;
}
}
return rec_no;
}
void person::get_data() //function to enter the values to the class variable
{
clrscr();
record_id=pers.get_rec_no();
gotoxy(5,7); //move cursor to position (5,7)
cout<<"ENTER THE NAME---------------------------> ";
gets(person_name);
gotoxy(5,8);
cout<<"RESIDENTIAL ADDRESS----------------------> ";
gets(res_address);
gotoxy(5,9);
cout<<"ENTER RESIDENTIAL PINCODE----------------> ";
gets(res_pincode);
gotoxy(5,10);
cout<<"ENTER RESIDENTIAL PHONE NO---------------> ";
gets(res_phone_no1);
gotoxy(5,11);
cout<<"ENTER THE OCCUPATION---------------------> ";
gets(occu_pation);
gotoxy(5,12);
cout<<"ENTER COMPANY'S NAME---------------------> ";
gets(company_name);
gotoxy(5,13);
cout<<"ENTER COMPANY'S ADDRESS------------------> ";
gets(off_address);
gotoxy(5,14);
cout<<"ENTER OFFICE PINCODE---------------------> ";
gets(off_pincode);
gotoxy(5,15);
cout<<"ENTER OFFICE PHONE NO--------------------> ";
gets(off_phone_no1);
gotoxy(5,16);
clrscr();
}
void person::show_data() //view the the class members
{
clrscr();
gotoxy(5,2);
cout<<"RECORD NUMBER----------------------------->"<<record_id;
gotoxy(5,3);
cout<<"NAME-------------------------------------->"<<person_name;
gotoxy(5,4);
cout<<"RESIDENTIAL ADDERSS----------------------->"<<res_address;
gotoxy(5,5);
cout<<"RESIDENTIAL PINCODE----------------------->"<<res_pincode;
gotoxy(5,6);
cout<<"RESIDENTIAL PHONE NO---------------------->"<<res_phone_no1;
gotoxy(5,7);
cout<<"OCCUPATION-------------------------------->"<<occu_pation;
gotoxy(5,8);
cout<<"COMPANY's NAME---------------------------->"<<company_name;
gotoxy(5,9);
cout<<"COMPANY's ADDRESS------------------------->"<<off_address;
gotoxy(5,10);
cout<<"OFFICE PINCODE---------------------------->"<<off_pincode;
gotoxy(5,11);
cout<<"OFFICE PHONE NO--------------------------->"<<off_phone_no1;
gotoxy(10,20);
cout<<"PRESS ANY KEY TO CONTINUE";
getch();
}
void person::add_object() //write the entered data in class 'person' to the file
{
fstream file;
char choice='y';
while(choice=='y')
{
file.open("phoneno.dat",ios::app|ios::binary);
get_data();
file.write((char*)&pers,sizeof(pers));
file.flush();
file.close();
clrscr();
gotoxy(10,11);
cout<<"ANY MORE RECORDS YOU WANNA ADD<<Y/N>>-------------->";
cin>>choice;
}
}
void person::del_object() //delete a record based on its record id no.
{
fstream infile,outfile;
unsigned long rec_no;
clrscr();
cout<<"ENTER THE RECORD ID.NO.TO BE DELETED--------->";
cin>>rec_no;
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0);
outfile.open("tempno.dat",ios::app|ios::binary);
//As the file cannot be modified directly, we create a temporary file where we don't copy the record.
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
if(pers.record_id!=rec_no)
outfile.write((char*)&pers,sizeof(pers));
outfile.flush();
infile.read((char*)&pers,sizeof(pers));
}
infile.close();
outfile.close();
//Replace the original file with the temporary file.
remove("phoneno.dat");
rename("tempno.dat","phoneno.dat");
}
void person::search_object() //searching and counting of records based on the user's choice
{
fstream infile;
int search_choice;
unsigned long rec_no;
char phno[15];
char name[64];
do
{
clrscr();
int counter=0;//for counting values
gotoxy(22,7);
cout<<" SEARCH MENU ";
gotoxy(22,9);
cout<<"-----------------";
gotoxy(22,11);
cout<<setiosflags(ios::left) << setw(30)<<"RECORD ID NO."<<"...1";
gotoxy(22,12);
cout<<setiosflags(ios::left) << setw(30)<<"NAME"<<"...2";
gotoxy(22,13);
cout<<setiosflags(ios::left) << setw(30)<<"PHONE NO."<<"...3";
gotoxy(22,14);
cout<<setiosflags(ios::left) << setw(30)<<"EXIT SEARCH MENU"<<"...4";
gotoxy(1,20);
cout<<"ENTER THE FIELD CHOICE ACCORDING TO WHICH A RECORD";
cout<<"IS TO BE SEARCHED--------->";
cin>>search_choice;
switch(search_choice)
{
case 1:
clrscr();
cout<<"\n ENTER THE RECORD ID.NO. TO BE SEARCHED----->";
cin>>rec_no;
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0,ios::beg);
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
if(pers.record_id==rec_no) //count record no matching the one being searched
{
counter++;
pers.show_data();
}
infile.read((char*)&pers,sizeof(pers));
}
infile.close();
gotoxy(20,24);
cout<<"RECORDS FOUND="<<counter;
getch();
break;
case 2:
clrscr();
cout<<"\n ENTER THE NAME TO BE SEARCHED---------->";
gets(name);
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0,ios::beg);
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
if(strcmpi(pers.person_name,name)==0)
{
counter++;
pers.show_data();
}
infile.read((char*)&pers,sizeof(pers));
}
infile.close();
gotoxy(20,24);
cout<<"RECORDS FOUND="<<counter;
getch();
break;
case 3:
clrscr();
cout<<"\nENTER THE PHONE NO.TO BE SEARCHED-------->";
cin>>phno;
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0,ios::beg);
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
if(strcmp(pers.res_phone_no1,phno)==0||strcmp(pers.off_phone_no1,phno)==0)
{
counter++;
pers.show_data();
}
infile.read((char*)&pers,sizeof(pers));
}
infile.close();
gotoxy(20,24);
cout<<"RECORDS FOUND="<<counter;
getch();
break;
case 4:
clrscr();
gotoxy(22,15);
cout<<"YOU HAVE ENDED THE SEARCH SESSION";
gotoxy(27,18);
cout<<"THANK YOU!";
delay(700); //This is a strictly dos command. For windows use 'Sleep(int);'
break;
}
}while(search_choice!=4);
}
void person::modify_object() //modify a record present in the file
{
fstream file;
unsigned long code;
int modify_choice;
do
{
clrscr();
gotoxy(22,7);
cout<<" MODIFY MENU ";
gotoxy(22,8);
cout<<"---------------------";
gotoxy(22,10);
cout<<setiosflags(ios::left) << setw(40)<<"RESIDENTIAL INFORMATON"<<"...1";
gotoxy(22,11);
cout<<setiosflags(ios::left) << setw(40)<<"OFFICIAL INFORMATION"<<"...2";
gotoxy(22,12);
cout<<setiosflags(ios::left) << setw(40)<<"EXIT"<<"...3";
gotoxy(22,13);
cout<<"SELECT THE INFORMATION TO BE CHANGED : ";
gotoxy(22,14);
cout<<"ENTER YOUR CHOICE----->";
cin>>modify_choice;
//The files are modified by looking for the position of the entered record no. and then modifying the record
if(modify_choice!=3)
{
clrscr();
gotoxy(10,15);
cout<<"ENTER THE RECORD NO. OF THE PERSON---->";
cin>>code;
file.open("phoneno.dat",ios::in|ios::out);
file.seekg(0,ios::beg);
file.read((char*)&pers,sizeof(pers));
int n=file.tellg();
while(!file.eof())
{
if(pers.record_id==code)
{
switch(modify_choice)
{
case 1:
clrscr();
cout<<"***** The Details of "<<pers.person_name;
cout<<"\n\nThe old Address is :-"<<pers.res_address;
cout<<"\nENTER NEW RESIDENTIAL ADDRESS-------------->";
gets(pers.res_address);
cout<<"The old Pin code is :-"<<pers.res_pincode;
cout<<"\nENTER NEW PINCODE-------------------------->";
gets(pers.res_pincode);
cout<<"The old Phone No.is :-"<<pers.res_phone_no1;
cout<<"\nENTER NEW RESIDENTIAL PHONE NO------------->";
gets(pers.res_phone_no1);
file.seekg(n-sizeof(pers));
file.write((char*)&pers,sizeof(pers));
file.flush();
break;
case 2:
clrscr();
cout<<"\nENTER THE OCCUPATION------------->";
gets(pers.occu_pation);
cout<<"\nENTER NEW COMPANY'S NAME--------->";
gets(pers.company_name);
cout<<"\nENTER NEW OFFICE ADDRESS--------->";
gets(pers.off_address);
cout<<"\nENTER NEW OFFICE PIN CODE-------->";
gets(pers.off_pincode);
cout<<"\nENTER NEW OFFICE PHONE NO-------->";
gets(pers.off_phone_no1);
file.seekg(n-sizeof(pers));
file.write((char*)&pers,sizeof(pers));
file.flush();
break;
}
}
file.read((char*)&pers,sizeof(pers));
n=file.tellg();
}
file.close();
}
}while(modify_choice!=3);
clrscr();
gotoxy(22,10);
cout<<"YOU ENDED MODIFY INFORTION SESSION";
gotoxy(30,13);
cout<<"THANK YOU";
delay(700);
}
void ex_change() //exchange the lvalues in pointers ptr1 & ptr2
{
temp=new node;
temp->link=NULL;
temp->recno=ptr2->recno;
strcpy(temp->pin,ptr2->pin);
strcpy(temp->name,ptr2->name);
ptr2->recno=ptr1->recno;
strcpy(ptr2->pin,ptr1->pin);
strcpy(ptr2->name,ptr1->name);
ptr1->recno=temp->recno;
strcpy(ptr1->pin,temp->pin);
strcpy(ptr1->name,temp->name);
delete temp;
}
void person::make_index() //create a linked stack containing name, record id no., pin no.
{
fstream infile;
first=new node;
ptr=first;
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0,ios::beg);
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
ptr->recno=record_id;
strcpy(ptr->pin,res_pincode);
strcpy(ptr->name,pers.person_name);
ptr->link=new node;
ptr=ptr->link;
infile.read((char*)&pers,sizeof(pers));
}
ptr->link=NULL;
infile.close();
}
void person::sort_name() //sort the records in the liked stack made by name in ascending order
{
pers.make_index();
ptr1=first;
while(ptr1->link!=NULL)
{
ptr2=ptr1->link;
while(ptr2->link!=NULL)
{
if(strcmpi(ptr2->name,ptr1->name)<0)
ex_change();
ptr2=ptr2->link;
}
ptr2=ptr1->link;
ptr1=ptr2;
}
}
void person::sort_recno() //sort the records in the liked stack by record no. in ascending order
{
pers.make_index();
ptr1=first;
while(ptr1->link!=NULL)
{
ptr2=ptr1->link;
while(ptr2->link!=NULL)
{
if(ptr2->recno<ptr1->recno)
ex_change();
ptr2=ptr2->link;
}
ptr2=ptr1->link;
ptr1=ptr2;
}
}
void person::sort_pin() //sort the records in the liked stack by pin no. in ascending order
{
pers.make_index();
ptr1=first;
while(ptr1->link!=NULL)
{
ptr2=ptr1->link;
while(ptr2!=NULL)
{
if(strcmpi(ptr2->pin,ptr1->pin)<0)
ex_change();
ptr2=ptr2->link;
}
ptr2=ptr1->link;
ptr1=ptr2;
}
}
void person::sort_print() //display the sorted stack node by node
{
fstream infile;
ptr=first;
while(ptr!=NULL)
{
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0,ios::beg);
//convert the entire database into a linked stack
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
if(ptr->recno==pers.record_id)
{
pers.show_data();
infile.seekg(0,ios::end);
}
infile.read((char*)&pers,sizeof(pers));
}
infile.close();
ptr=ptr->link;
}
}
void del_index() //clears up the stack completely
{
while(first!=NULL)
{
ptr=first;
first=first->link;
delete ptr;
}
}
void person::sort_object() //function to display sort menu
{
int sort_choice;
do
{
clrscr();
gotoxy(22,7);
cout<<" SORT MENU ";
gotoxy(22,8);
cout<<"-------------------";
gotoxy(22,10);
cout<<setiosflags(ios::left) << setw(40)<<"SORTED RECORDS NOS."<<"...1";
gotoxy(22,11);
cout<<setiosflags(ios::left) << setw(40)<<"SORTED NAMES"<<"...2";
gotoxy(22,12);
cout<<setiosflags(ios::left) << setw(40)<<"SORTED PINCODES NOS."<<"...3";
gotoxy(22,13);
cout<<setiosflags(ios::left) << setw(40)<<"EXIT SORT MENU"<<"...4";
gotoxy(22,20);
cout<<"ENTER YOUR CHOICE NO.----->";
cin>>sort_choice;
switch(sort_choice)
{
case 1:
clrscr();
pers.sort_recno();
pers.sort_print();
del_index();//clear up the stack to prevent memory leaking
delay(200);
break;
case 2:
clrscr();
pers.sort_name();
pers.sort_print();
del_index();
delay(200);
break;
case 3:
clrscr();
pers.sort_pin();
pers.sort_print();
del_index();
delay(200);
break;
case 4:
clrscr();
gotoxy(22,10);
cout<<"YOU ENDED THE SORTED SESSION";
gotoxy(27,13);
cout<<"THANK YOU!";
delay(700);
break;
}
}while(sort_choice!=4);
}
void person::reports() //function to display report menu (which uses a table to display)
{
fstream infile;
int report_choice;
do
{
clrscr();
gotoxy(22,7);
cout<<" REPORT MENU ";
gotoxy(22,8);
cout<<"------------------";
gotoxy(5,10);
cout<<setiosflags(ios::left) << setw(61)<<"SORTED LIST OF NAMES WITH RESIDENCE AND OFFICE PHONE NOS"<<setw(5)<<"...1";
gotoxy(5,11);
cout<<setiosflags(ios::left) << setw(61)<<"LIST OF NAMES WITH THIER OFFICE DETAILS"<<setw(5)<<"...2";
gotoxy(5,12);
cout<<setiosflags(ios::left) << setw(61)<<"LIST OF NAMES WITH THEIR RECORD NOS.AND RESIDENTIAL ADDRESS"<<setw(5)<<"...3";
gotoxy(5,13);
cout<<setiosflags(ios::left) << setw(61)<<"EXIT REPORT SESSION"<<setw(5)<<"...4";
gotoxy(5,14);
cout<<"ENTER YOUR CHOICE NO.------>";
cin>>report_choice;
switch(report_choice)
{
case 1:
clrscr();
cout<<setiosflags(ios::left) << setw(28)<< "NAME" << setw(30)<< "RES.PHONE NO." << setw(30)<< "OFFICE PHONE NO.";
cout<<"\n";
cout<<"\n-------------------------------------------------------------------------------";
pers.sort_name();
ptr=first;
while(ptr!=NULL)
{
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0,ios::beg);
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
if(ptr->recno==pers.record_id)
{
cout<<"\n";
cout<<setiosflags(ios::left)<<setw(28)<<pers.person_name<<setw(30)<<pers.res_phone_no1<<setw(30) <<pers.off_phone_no1;
infile.seekg(0,ios::end);
}
infile.read((char*)&pers,sizeof(pers));
}
infile.close();
ptr=ptr->link;
}
del_index();
gotoxy(20,40);
cout<<"PRESS ANY KEY TO CONTINUE";
getch();
break;
case 2:
clrscr();
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0,ios::beg);
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
gotoxy(10,5);
cout<<"NAME-------------------->"<<pers.person_name;
gotoxy(10,6);
cout<<"COMPNAY'S NAME---------->"<<pers.company_name;
gotoxy(10,7);
cout<<"COMPANY'S ADDESS-------->"<<pers.off_address;
gotoxy(10,8);
cout<<"OFFICE PHONE NO--------->"<<pers.off_phone_no1;
gotoxy(10,10);
cout<<"PRESS ANY KEY TO CONTINUE";
getch();
infile.read((char*)&pers,sizeof(pers));
clrscr();
}
infile.close();
break;
case 3:
clrscr();
cout<<setiosflags(ios::left)<<setw(16)<<"\nREC NO." << setw(15)<< "NAME" << setw(35)<< "RES.ADDRESS" << setw(18)<< "RES PHONE NO";
cout<<"\n-------------------------------------------------------------------------------";
infile.open("phoneno.dat",ios::in|ios::binary);
infile.seekg(0,ios::beg);
infile.read((char*)&pers,sizeof(pers));
while(!infile.eof())
{
cout<<"\n";
cout<<setiosflags(ios::left)<<setw(15)<<pers.record_id<<setw(15)<<pers.person_name<<setw(35)<<pers.res_address<<setw(18)<<res_phone_no1;
infile.read((char*)&pers,sizeof(pers));
}
infile.close();
gotoxy(20,40);
cout<<"PRESS ANY KEY TO CONTINUE";
getch();
break;
case 4:
clrscr();
gotoxy(22,10);
cout<<"YOU HAVE ENDED REPORT SESSION";
gotoxy(27,30);
cout<<"THANK YOU";
delay(700);
break;
}
}
while(report_choice!=4);
}
void main() //MAIN FUNCTION
{
int main_choice;
do
{
clrscr();
gotoxy(22,7);
cout<<" MAIN MENU ";
gotoxy(25,11);
cout<<setiosflags(ios::left) << setw(30)<<" ADD A NEW RECORD"<<"...1";
gotoxy(25,12);
cout<<setiosflags(ios::left) << setw(30)<<" DELETE A RECORD"<<"...2";
gotoxy(25,13);
cout<<setiosflags(ios::left) << setw(30)<<" MODIFY A RECORD"<<"...3";
gotoxy(25,14);
cout<<setiosflags(ios::left) << setw(30)<<" SEARCH A RECORD"<<"...4";
gotoxy(25,15);
cout<<setiosflags(ios::left) << setw(30)<<" SORTED INFORMATION"<<"...5";
gotoxy(25,16);
cout<<setiosflags(ios::left) << setw(30)<<" REPORTS"<<"...6";
gotoxy(25,17);
cout<<setiosflags(ios::left) << setw(30)<<" EXIT"<<"...7";
gotoxy(25,20);
cout<<"ENTER YOUR CHOICE NO.--------->";
cin>>main_choice;
switch(main_choice)
{
case 1:
pers.add_object();
break;
case 2:
pers.del_object();
break;
case 3:
pers.modify_object();
break;
case 4:
pers.search_object();
break;
case 5:
pers.sort_object();
break;
case 6:
pers.reports();
break;
case 7:
clrscr();
gotoxy(22,10);
cout<<"YOU HAVE ENDED THE SESSION";
gotoxy(27,13);
cout<<"THANK YOU";
delay(1000);
break;
}
}while(main_choice!=7);
}
