C++ Problem Program

Hi,
I have a program to do - the brief is below in red text. Below that in dark blue text is the code i have done so far. The program does not work. Please help.

A simple sequential file-based database is required to help people keep track of contacts. The system should be able to hold information about the following at least.

• Surname
• First name
• Email
• Telephone no.
• Type (work/personnel/…)

You may add more information if you wish!

The file is always ordered in increasing alphabetical order on Surname.

The following operations are required (at least)
• add new entry
• modify an entry
• delete an entry
• search for entry or entries
• list all contacts to a file for printing

Design and implement a simple C++ system maintaining all relevant information on file.


// Code to Add an entry

#include <iostream>
#include <fstream> // stream class to both read and write from/to files
#include <string>

using namespace std; // no need for .h after libraries when using this line

int main()

{
ifstream instream_1; // temporary
ofstream outstream_1; // contacts
ifstream instream_2; // temporary
ofstream outstream_2; // contacts

// the following six lines will create the contacts and temporary text files
ifstream instream_1; // declarations of streams instream_1 outstream_1
ofstream outstream_1;
instream_1.open("temporary.txt", ios::in); // open the streams
outstream_1.open("contacts.txt", ios:ut);
instream_1.close(); // close the streams
outstream_1.close();

string surname_1, first_name_1, email_1, telephone_1, type_1; // string for old contacts
string surname_2, first_name_2, email_2, telephone_2, type_2; // string for new contacts

/*
outstream.open ("contacts.txt");
outstream.close();
*/

instream_1.open("temporary.txt",ios::in); // open for input operations
outstream_1.open("contacts.txt",ios:ut); // open for output operations.

instream_1>>surname_1>>first_name_1>>email_1>>telephone_1>>type_1;

cout<<"Enter Surname: ";
cin>>surname_1;
cout<<"\nEnter First Name: ";
cin>>first_name_1;
cout<<"\nEnter Email Address: ";
cin>>email_1;
cout<<"\nEnter Telephone Number: ";
cin>>telephone_1;
cout<<"\nEnter Type(Work / Personal): ";
cin>>type_1;

capital Z as sentinel is used because of its ASCII value being more than all other letters
while (surname_1 != "ZZZZZ") // 2 or more while loops are required
{
instream_1>>surname_1>>first_name_1>>email_1>>telephone_1>>type_1;
outstream_1<<surname_1<<first_name_1<<email_1<<telephone_1<<type_1;
}

while((surname_2 > surname_1))
{
instream_1>>surname_1>>first_name_1>>email_1>>telephone_1>>type_1;
outstream_1<<surname_1<<first_name_1<<email_1<<telephone_1<<type_1;
}

instream_1.close(); // the file is closed
outstream_1.close(); // the file is closed

return 0;

}

 

What are the compile errors? I see some lines that should be commented but I don't know if thats just a copy and paste issue

 

Thank you for your help Wookie. Also thank you very much for helping me on other threads also.

Here are the errors.

Error 1 error C2086: 'std::ifstream instream_1' : redefinition c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 27
Error 2 error C2086: 'std:fstream outstream_1' : redefinition c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 28
Error 3 error C2065: 'capital' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 4 error C2146: syntax error : missing ';' before identifier 'Z' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 5 error C2065: 'Z' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 6 error C2146: syntax error : missing ';' before identifier 'as' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 7 error C2065: 'as' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 8 error C2146: syntax error : missing ';' before identifier 'sentinel' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 9 error C2065: 'sentinel' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 10 error C2146: syntax error : missing ';' before identifier 'is' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 11 error C2065: 'is' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 12 error C2146: syntax error : missing ';' before identifier 'used' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 13 error C2065: 'used' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 14 error C2146: syntax error : missing ';' before identifier 'because' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 15 error C2065: 'because' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 16 error C2146: syntax error : missing ';' before identifier 'of' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 17 error C2065: 'of' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 18 error C2146: syntax error : missing ';' before identifier 'its' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 19 error C2065: 'its' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 20 error C2146: syntax error : missing ';' before identifier 'ASCII' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 21 error C2065: 'ASCII' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 22 error C2146: syntax error : missing ';' before identifier 'value' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 23 error C2065: 'value' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 24 error C2146: syntax error : missing ';' before identifier 'being' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 25 error C2065: 'being' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 26 error C2146: syntax error : missing ';' before identifier 'more' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 27 error C2065: 'more' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 28 error C2146: syntax error : missing ';' before identifier 'than' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 29 error C2065: 'than' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 30 error C2146: syntax error : missing ';' before identifier 'all' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 31 error C2065: 'all' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 32 error C2146: syntax error : missing ';' before identifier 'other' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 58
Error 33 error C2065: 'other' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 59
Error 34 error C2146: syntax error : missing ';' before identifier 'letters' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 59
Error 35 error C2065: 'letters' : undeclared identifier c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 59
Error 36 error C2143: syntax error : missing ';' before 'while' c:\documents and settings\raymond.white\my documents\visual studio 2005\projects\aaaaa\aaaaa\aaaaa.cpp 59

 

Ah simple one, you declared a variable twice

Code:

 ifstream instream_1; // temporary
ofstream outstream_1; // contacts
ifstream instream_2; // temporary
ofstream outstream_2; // contacts

// the following six lines will create the contacts and temporary text files
ifstream instream_1; // declarations of streams instream_1 outstream_1
ofstream outstream_1;

Just get rid of the second instream_1 and outstream_1 or rename them

 

thanks again Wookie