File Handeling Problem In C++

[pankaj255143]

i cannot get the output by using the function showdata()........plz run this code and send the solution on my ID <ID removed by weaknessforcats>


// A PROGRAME TO OPERATE SOME FILE RELATED OPERATIONS....

#include<iostream.h>
#include<fstream.h>
#include<conio.h>
class stock
{
public:
int no;
char mfd[10]; // DD/MM/YYYY
char exp[10]; // DD/MM/YYYY total 10 digits

};
void get()
{
clrscr();
stock stk;
cout<<"\n enter serial no : " ;
cin>>stk.no;
cout<<"\n enter mfd in DD:MM:YYYY formate : ";
cin>>stk.mfd;
cout<<"\n enter date of exp : ";
cin>>stk.exp;
ofstream fout;
fout.open("d:/stock.txt",ios::binary);
fout.seekp(ios::end);
fout.write((char*) &stk ,sizeof stk);
fout.close();
}
void showdata()
{
ifstream fin;
stock stk;
fin.open("d:/stock.txt",ios::binary);
fin.seekg(ios::beg);
fin.read((char *) &stk,sizeof stk);
cout<<"serial : "<<stk.no;
cout<<"\n mfd : "<<stk.mfd;
cout<<"\n exp : "<<stk.exp;
}


void main()
{
stock stk;
void get(void);
void showdata(void);
int choice;
cout<<"\n enter your choice :\n enter 1 for input and 2 for show data : ";
cin>>choice;
switch(choice)
{
case 1:
get();
break;
case 2:
showdata();
break;
}
getch();
}

[keerthiramanarayan]

First of all i would ask you to see the Posting Guidelines.

Coming to the solution, do you really require a class for something that holds only data. You would be better off storing the data as a structure. Next, to support portability and easy retrieval, it would be better if you wrote each member separately into the file. The runtime may arrange each type differently and cause problems. Try writing(reading) each field separately and see the output.

[pankaj255143]

First of all i would ask you to see the Posting Guidelines.

Coming to the solution, do you really require a class for something that holds only data. You would be better off storing the data as a structure. Next, to support portability and easy retrieval, it would be better if you wrote each member separately into the file. The runtime may arrange each type differently and cause problems. Try writing(reading) each field separately and see the output.

hello sir....thanks for giving reply..... i've assigned a project and this code is a part of that project(stock management system). i want to store the whole data in file through the object.bcz by using read and write functions i can easily retrive and save data to the file.......
so plz try to understand my problem and give the solution.