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Telephone Directory Program #2

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300 changes: 300 additions & 0 deletions telephone.cpp
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//***************************************************************
// HEADER FILE USED IN PROJECT
//****************************************************************
#include <iostream>
#include<conio.h>
#include<fstream>
#include<string.h>
using namespace std;

class phonebook{
char name[30];
char phno[20];
char city[20];
char pin[10];
char email[40];
public:

void getdata(){
cout<<"\nEnter Name : ";
gets(name);
cout<<"Enter Phone No. : ";
gets(phno);
int x=strlen(phno);
while(x!=10)
{
cout<<"enter valid phone no.:";
gets(phno);
x=strlen(phno);
}

cout<<"Enter city : ";
gets(city);
cout<<"Enter pin No. : ";
gets(pin);
int y=strlen(pin);
while(y!=6)
{
cout<<"enter valid pin no.:";
gets(pin);
y=strlen(pin);
}
cout<<"Enter email ID : ";
gets(email);

}

void showdata(){
cout<<"\n" ;
cout<<"Name: "<<name<<endl;
cout<<"Phoneno: "<<phno<<endl;
cout<<"City: "<<city<<endl;
cout<<"Pin: "<<pin<<endl;
cout<<"Email Id: "<<email<<endl;
}

char *getname() { return name; }
char *getcity() { return city; }

}; //class ends here

char nm[30];


// global declaration for stream object, object


fstream fp;
phonebook record;



// function to write in file


void write_record()
{
fp.open("telephone.dat",ios::out|ios::app);
record.getdata();
fp.write((char*)&record,sizeof(record));
fp.close();
cout<<"\n\nThe Record Has Been Created ";
getch();
}



// function to read all records from file



void display_all()
{ int n=0;
system("cls");
cout<<"\n\n\n\t\tDISPLAY ALL RECORDS !!!\n\n";
fp.open("telephone.dat",ios::in);
while(fp.read((char*)&record,sizeof(record)))
{ n++;

record.showdata();
cout<<"\n\n====================================\n";
getch();
}
cout<<"Total NO. of Records are : "<<n;
fp.close();
getch();
}



// function to read specific record from file



void display_record()
{ char nm[30];
system("cls");
cout<<"\n\n\tPlease Enter The name of the person ";
gets(nm);
int flag=0;
fp.open("telephone.dat",ios::in);
while(fp.read((char*)&record,sizeof(record)))
{
if(strcmp(record.getname(),nm)==0)
{
cout<<"The Record You Searched For is :"<<endl;
record.showdata();
flag=1;
}
}
fp.close();
if(flag==0)
cout<<"\n\nRecord not exist";
getch();
}


// DISPLAY A PARTICULAR CITY RECORD


void display_recordcity()
{ char ct[50]; int no=0;
system("cls");
cout<<"\n\n\tPlease Enter The name of the city ";
gets(ct);
int flag=0;
fp.open("telephone.dat",ios::in);
while(fp.read((char*)&record,sizeof(record)))
{
if(strcmp(record.getcity(),ct)==0)
{ no++;
record.showdata();
flag=1;
}
}
cout<<"\n\n Total Records "<<no;
fp.close();
if(flag==0)
cout<<"\n\nRecord does not exist";
getch();
}









// function to modify record of file



void modify()
{

char nm[30];int found=0;
system("cls");
cout<<"\n\n\tTo Modify ";
cout<<"\n\n\tPlease Enter The name of the person\n";
cout<<"\n \twhose details you want to update :";
gets(nm);
fp.open("telephone.dat",ios::in|ios::out);
while(fp.read((char*)&record,sizeof(record)) && found==0)
{
if(strcmp(record.getname(),nm)==0)
{
record.showdata();
cout<<"\nPlease Enter The New Details"<<endl;
record.getdata();
int pos=-1*sizeof(record);
fp.seekp(pos,ios::cur);
fp.write((char*)&record,sizeof(record));
cout<<"\n\n\t Record Updated";
found=1;
record.showdata();
}
}
fp.close();
if(found==0)
cout<<"\n\n Record Not Found ";
getch();
}

// function to delete record of file
void delete_record()
{ int found =0;
char confirm='n';
char nm[10];
system("cls");
cout<<"\n\n\n\tDelete Record";
cout<<"\n\nPlease Enter The name of the person You Want To Delete : ";
cin>>nm;
fp.open("telephone.dat",ios::in|ios::out);
fstream fp2;
fp2.open("Temp.dat",ios::out);
fp.seekg(0,ios::beg);
while(fp.read((char*)&record,sizeof(record)))
{

if(strcmp(record.getname(),nm)==0)
{
record.showdata();
found =1;
cout<<"Are You Sure You Want To Delete The Record ";
cin>>confirm;
if(confirm=='n')
{ cout<<"Record Still There ";
fp2.write((char*)&record,sizeof(record));
} }
else
fp2.write((char*)&record,sizeof(record));
}
if(confirm!='n')
cout<<"Record Deleted..";
fp2.close();
fp.close();
remove("telephone.dat");
rename("Temp.dat","telephone.dat");
if(found==0)
cout<<"\n\n Record Not Found ";
getch();
}

// THE MAIN FUNCTION OF PROGRAM


void menu()
{
char ch;
do
{
system("cls");
cout<<endl<<endl<<endl<<endl;
cout<<"\n\n\t \t \t \t \t \tTELEPHONE DIRECTORY ";
cout<<"\n\n\t \t \t \t \t \tMAIN MENU";
cout<<"\n\n\t \t \t \t \t \t1.CREATE RECORD";
cout<<"\n\n\t \t \t \t \t \t2.DISPLAY ALL RECORD";
cout<<"\n\n\t \t \t \t \t \t3.SEARCH A PARTICULAR RECORD";
cout<<"\n\n\t \t \t \t \t \t4.SEARCH RECORDS OF PARTICULAR CITY";
cout<<"\n\n\t \t \t \t \t \t5.MODIFY A RECORD";
cout<<"\n\n\t \t \t \t \t \t6.DELETE RECORD";
cout<<"\n\n\t \t \t \t \t \t7.EXIT";
cout<<"\n\n\t \t \t \t \t \tPlease Select Your Option (1-7) ";
ch=getch();
switch(ch)
{
case '1': system("cls");
write_record();
break;
case '2':display_all();
break;

case '3': display_record();
break;

case '4' :display_recordcity();
break;
case '5':
modify();
break;
case '6': delete_record();
break;

case '7':
exit(0);
default:cout<<"ENTER VALID CHOICE";
}
}
while(ch!='7');
}
int main()
{
menu();
return 0;
}


// END OF PROJECT