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#include <fstream.h>
#include <conio.h>
#include <stdlib.h>
#include <stdio.h>
#include<string.h>
#include<iomanip.h>
class voter_details
{
private:
struct person
{
char name[50];
char location[20];
int age;
char date[20];
}p;
fstream inFile;
public:
voter_details();
void addrec();
void delrec();
void updaterec();
void printrec();
void show();
void exit();
};
///////////////////////////////////////////////////////////////////////////////////
void main()
{
char choice;
voter_details g;
do
{
cout<<"*****************Voter's Registration*****************"<<endl;
cout<<"1. Registration"<<endl;
cout<<"2. Print all Records"<<endl;
cout<<"3. Edit"<<endl;
cout<<"4. Delete"<<endl;
cout<<"5. About"<<endl;
cout<<"6. View"<<endl;
cout<<"7. Exit"<<endl;
cout<<"******************************************************"<<endl<<endl;
cin>>choice;
switch(choice)
{
case '1':
g.addrec();
break;
case '2':
g.printrec();
break;
case '3':
g.updaterec();
break;
case '4':
g.delrec();
break;
case '6':
g.show();
case '0':
g.exit();
exit(0);
}
}while(choice!=0);
}
voter_details::voter_details()
//Zero Argument Constructor
{
inFile.open("vote.txt",ios::binary|ios::in|ios::out);
if(!inFile)
{
cout<<endl<<"Unable to open file";
exit();
}
}
////////////////////////////////////////////////////////////////////////////////////////
void voter_details::addrec()
{
char ch;
inFile.seekp(0L,ios::end);
do
{
cout<<endl;
cout<<"Enter Name: ";
cin>>p.name;
cout<<"Enter address: ";
cin>>p.location;
cout<<"Enter age: ";
cin>>p.age;
cout<<"Enter Birthdate: ";
cin>>p.date;
cout<<endl;
inFile.write((char*)&p,sizeof(p));
cout<<"Add another Record?(Y/N)";
cin>>ch;
}while(ch=='y'||ch=='Y');
}
//////////////////////////////////////////////////////////////////////////////////////////////
void voter_details::printrec()
{
int j=1;
inFile.seekg(0L,ios::beg);//Get pointer at the beginning of the file
while(inFile.read((char*)&p,sizeof(p)))
{ //as long as end of file is not reached read each record and display it
cout<<endl<<"Record #"<<j++ //Post-increment of j
<<endl<<"\t\tName: "<<p.name
<<endl<<"\t\tLocation: "<<p.location
<<endl<<"\t\tAge: "<<p.age<<endl<<"\t\tBirthdate: "<<p.date;
}
inFile.clear();
if(j==1) cout<<"No record"<<endl; //If the address book is empty
cout<<endl<<"Press any key...."<<endl;
getch();
}
//////////////////////////////////////////////////////////////////////////////
void voter_details::updaterec()
{
char name[20];
int count=0;
long int pos;
cout<<"Enter person's name : ";
cin>>name;
inFile.seekg(0L,ios::beg);
while(inFile.read((char*)&p,sizeof(p)))
{
if(strcmp(p.name,name)==0)
{
cout<<endl<<"Enter new record"<<endl;
cout<<"Enter Name: ";
cin>>p.name;
cout<<"Enter address: ";
cin>>p.location;
cout<<"Enter age: ";
cin>>p.age;
cout<<"Enter Birthdate: ";
cin>>p.date;
pos=count*sizeof(p);
inFile.seekp(pos,ios::beg);
inFile.write((char*)&p,sizeof(p));
return;
}
count++;
}
cout<<endl<<"No Record with name = "<<name;
cout<<endl<<"Press any key...."<<endl;
getch();
inFile.clear();
}
////////////////////////////////////////////////////////////////////////////////////////
void voter_details::delrec()
{
char name[20],ch;
cout<<"Enter the name of the person to delete : "<<endl;
cin>>name;
ofstream outfile; //creates a temporary file of stream outfile
outfile.open("temporary.txt",ios::out);
inFile.seekg(0L,ios::beg); //position get pointer at the beginning of the file
while(inFile.read((char*)&p,sizeof(p)))
{
if(strcmp(p.name,name)==0)
{
cout<<endl<<p.name
<<endl<<p.location
<<endl<<p.age
<<endl<<p.date;
cout<<"Delete Record? (Y/N): ";
cin>>ch;
}
if(ch=='Y'||ch=='y')
{
inFile.seekg(0L,ios::beg);
while(inFile.read((char*)&p,sizeof(p)))
{
if(strcmp(p.name,name)!=0)
outfile.write((char*)&p,sizeof(p));
}
cout<<endl<<"Record Deleted"<<endl;
outfile.close();
inFile.close();
remove("vote.txt");
rename("temporary.txt","vote.txt");
inFile.open("vote.txt",ios::binary|ios::in|ios::out);
}
}
if (ch=='N'||ch=='n')
{
cout<<endl<<"Deletion Cancelled"<<endl;
outfile.close();
}
return;
}
//////////////////////////////////////////////////////////////////////////////////////////////
void voter_details::show()
{
ifstream inFile;
char name[20];
inFile.open("vote.txt");
if(inFile.fail())
{
cout<<" \n FILE NOT FOUND ";
getch();
return;
}
cout<<" \n ENTER name TO BE SEARCHED : ";
cin>>name;
inFile.read((char*)&p,sizeof(p));
if(name==p.name)
{
cout<<p.name<<endl<<p.age<<endl<<p.location;
return;
}
if(inFile.eof())
{
cout<<" \n RECORD NOT FOUND ";
}
}
void voter_details::exit()
{
inFile.close();
}
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