Member Avatar for aladar04

Hi! I am having trouble with this program. I'm done with the creation of records. My problem is, I cant make it print a record using the Record Number inputted by the user. I used seekg() but it doesn't work. I have attached the files for reference. try.cpp and accounts.txt

I forgot to say that you should rename accounts.txt to accounts.dat.

0
6274
James
Johnson
415.56
1
2843
Marcus
Wilson
9217.23
2
4892
Maureen
Albright
51462.56
3
8337
Debra
Douglas
27.26
4
9623
Bruce
Gold
719.32
5
3165
John
Carlson
1496.24
6
1892
Mary
Smith
918.26
7
3924
Simon
Becker
386.85
8
6023
John
Edgar
9.65
9
5290
George
Truman
16110.68
10
5829
Ellen
Fairchild
86.77
11
1144
Donald
Williams
4114.26
#include <fstream>

#include <iostream>

using namespace std;

//inputs
    int RecordNumber=0;
    int AccountID;
    char FirstName[30], LastName[30];
    double Balance;

    char FileName[20];
    int NR=0;
    const long bytesPerRecord = 38;
/*
void CreateFile(){
     cout << "\nEnter the name of the file you want to create: ";
     cin >> FileName;
     ofstream Accounts(FileName, ios::out);
     char ans;
     do {
        cout << "Enter Account ID: ";
        cin >> AccountID;
        
        cout << "Enter First Name: ";
        cin >> FirstName;

        cout << "Enter Last Name: ";
        cin >> LastName;

        cout << "Enter Balance: ";
        cin >> Balance;

        Students << RecordNumber << "\n" << AccountID << "\n" << FirstName << "\n" << LastName << "\n" << Balance << "\n";
        cout << "Add another? y/n: ";
        cin >> ans;
        if (ans=='y'){
           RecordNumber++;
        }
        NR++;
    } while (ans=='y');
}
*/
void ReadFile (){
     int FRec;
     cout << "Enter the name of the file you want to open: ";
     cin >> FileName;
     cout << "Record # you are loooking for: ";
     cin >> FRec;
     ifstream Accounts(FileName);
     cout << "Record #" << "\t" << "Account ID" << "\t" << "First Name" << "\t" << "Lastname" << "\t" << "Balance";

     Accounts.seekg(FRec*bytesPerRecord);
     Accounts >> RecordNumber >> AccountID >> FirstName >> LastName >> Balance;
	 cout << "\n" << RecordNumber;
	 cout << "\t\t" << AccountID;
	 cout << "\t\t" << FirstName;
     cout << "\t\t" << LastName;
     cout << "\t\t" << Balance;
     cout << "\n";
     
}

int main()

{
    ReadFile();
    //CreateFile();
    

    system("pause");
    return 0;

}
Edited by aladar04 because: n/a
  • 2 Contributors
  • 2 Replies
  • 107 Views
  • 11 Hours Discussion Span
  • Latest Post Latest Post by alwaysLearning0
Member Avatar for alwaysLearning0

You have bytesPerRecord=38
but accounts.txt has different size of records which ultimately messing up your seekg calculation. Make sure all the records in account.txt is of size 38 bytes.

Member Avatar for alwaysLearning0

You have bytesPerRecord=38
but accounts.txt has different size of records which ultimately messing up your seekg calculation. Make sure all the records in account.txt is of size 38 bytes.

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