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<iostre am.h>
#include<fstrea m.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((cha r*) &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.