FILES USING C++

/*PROGRAM USING FILES*/

PROGRAM:

 

#include<iostream.h>

#include<fstream.h>

#include<iomanip.h>

#include<string.h>

#include<conio.h>

class vote

{

protected:

 char na[20];

 int age;

 char sex;

public:

 void getdata();

 void display();

};

void vote::getdata()

{

cout<<"\n Enter the name:";

cin>>na;

cout<<"\n Enter the age:";

cin>>age;

cout<<"\n Enter the sex:";

cin>>sex;

}

void vote::display()

{

cout<<"\n\t Name  :"<<na;

cout<<"\n\t Age   :"<<age;

if(age>18)

cout<<"\n\t"<<na<<"has rights to vote";

else

cout<<"\n\t"<<na<<"cannot vote";

cout<<"\n\t Sex   :"<<sex;

}

void main()

{

clrscr();

vote vv;

fstream infile;

char fna[20];

int ch;

aa:

 cout<<"\n\t Enter the file name(your choice):";

 cin>>fna;

 infile.open(fna,ios::in||ios::out);

 vv.getdata();

 infile.open(fna,ios::out);

 infile.write((char *)&vv,sizeof(vv));

 infile.close();

 infile.open(fna,ios::in);

 cout<<"\n\n Reading from file....";

 infile.read((char *)&vv,sizeof(vv));

 vv.display();

 infile.close();

 cout<<"\n\t Press i to continue.........";

 cin>>ch;

 if(ch==1)

 goto aa;

 else

 getch();

}

OUTPUT

         Enter the file name(your choice):A

 Enter the name:vanitha

 Enter the age:29

 Enter the sex:Female

 Reading from file....

         Name  :vanitha

         Age   :29

        Punitha has rights to vote

         Sex   :F

         Press i to continue.........