Sort and Read file

[xiaokoong]

Hi I am trying read in a file and sort it with user number SSN number, but I have no idea how to do it. I also need to separate the first name and last name with the comma. Another problem tends to show up when I compile the program. There is an extra line between age and the address, and it only occurs to the first person's information. Any help will be appreciated.

#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
using namespace std;


int main()
{
    ifstream theFile("A1.txt");

    string firstName, lastName, address;
    char ch;
    int ssn, age;

    if(!theFile)
    {
        cout << "ERROR" << endl;
    }

    else
    {
        while(!theFile.eof())
        {
            theFile >> firstName;
            cout << firstName<< endl;
            theFile >> ssn;
            cout << ssn<< endl;
            theFile >> age;
            cout << age<< endl;
            while(getline(theFile,address))
            {
                cout <<address << endl;
            }

        }
        theFile.close();
    }
    return 0;
}

The format of the document
Matthews,Jocob
459237148
19
3930 4th Blvd, Yourcity, NJ 88710

Garfield,Kitty
891772436
24
36 Jon Havey Court, Middle, MO 66222

[coder777]

If you want to sort multiple entries you need a container such as an array, vector, list etc.
In the standard library there is a sort function:

http://www.cplusplus.com/reference/algorithm/sort/?kw=sort

Better put ther required variables into a struct or class

There is an extra line between age and the address

This proble occurs due to the fact that the operator>> leaves and end of line in the stream. getline() takes it as an empty line.

line 31: are you sure you want to read the address until the end of file?
line 23: there might be other errors. So better use something like while(theFile.good())