reading selective data from a file

[timmy]

#include<iostream>
#include<conio.h>
#include<fstream>
#include<string>
using namespace std;
int main()
{
string name;
int roll,marks,i;
ofstream myfile[2];
myfile[0].open("student1.txt",ios::out);
myfile[1].open("student2.txt",ios::out);
for(i=0;i<2;i++)
{
cout<<"enter the name";
getline(cin,name);
myfile[i]<<name;
cout<<"enter the roll number";
cin>>roll;
cin.get();
myfile[i]<<roll;
cout<<"enter the marks";
cin>>marks;
cin.get();
myfile[i]<<marks;
myfile[i].close();
}
ifstream urfile[2];
urfile[0].open("student1.txt",ios::in);
urfile[1].open("student2.txt",ios::in);
cout<<"enter the roll number of student whose detail you wish to know";
int query;
cin>>query;

i know this code is totally incomplete.but i failed to proceed after this.i tried to google around object serialization but failed to understand it.plz help me out with this code.even a hint is appreciated..

[geekocoder]

just write each data on a separate line.......and remember which line contains what data......hope that helps

[mcrist]

Could you just create some sort of data structure (like an ArrayList or vector of elements) and search those from the memory or is the data file too large? I would create a class called Student, store the data for each student read in from the data file, and use a searching algorithm (bubble/binary/ or whatever you want) to acquire the result.

[Mathhead200]

mcrist wrote:

... use a searching algorithm (bubble/binary/ or whatever you want) ...

I don't know of any bubble search.

What are you trying to do, and what exactly is the problem timmy? (Also, please format your code!)

[mcrist]

>.< Bubble sort fail...