Sequential Records

This is a discussion on Sequential Records within the C++ Programming forums, part of the General Programming Boards category; in our c++ clas we are writing a program that stores files in a sequential records. our teacher isnt the ...

  1. #1
    Registered User
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    Nov 2003
    Posts
    9

    Question Sequential Records

    in our c++ clas we are writing a program that stores files in a sequential records. our teacher isnt the brightest and he doesn't help us. ive tried for about 2 weeks to figure it out, some please help.

    Code:
    //Wirte a program that writes a users name, address, and phone to a file.
    //Then display a menu for the user to choose to add a record, veiw the record, or end.
    
    #include<iostream.h>
    #include<fstream.h>
    #include<stdlib.h>
    
    	
    
    main()
    {
    	system("cls");
    	int choice = 0;
    	char name[26] = "                        ";
    	char address[30] = "                             ";
    	char phone[12] = "           ";
    	int A = 0;
    
    	
    	do
    	{
    	cout << "Main Menu" << '\n';
    	cout << "1. Add Record " << '\n' <<"2. Display File " << '\n' << "3. End " << '\n' << "Enter choice: ";
    	cin >> choice;
    	cout << '\n';
    	system("cls");
    	
    
    	if(choice == 1)
    	{
    		ofstream outfile;	
    		outfile.open("User.DAT", ios::out);
    	
    		do
    		{
    			cout << "Enter your name: ";
    			cin >> name;
    			cin.ignore(80, '\n');
    		
    			cout <<"Enter your address: ";
    			cin.get(address, 30);
    			cin.ignore(80, '\n');
    	
    			cout << "Enter your phone number: ";
    			cin.get(phone, 12);
    			cin.ignore(80, '\n');
    	
    			outfile << name;
    			outfile << address;	
    			outfile << phone;
    			
    			cout << '\n' << "Press 1 to add another file and 2 to exit to main menu: ";
    			cin >> A;
    		}while(A == 1);
    		
    		outfile.close();
    		
    	}
    
    	
    	ifstream infile;
    	if(choice == 2)
    	{
    	infile.open("User.DAT",ios::in);
    	infile >> name;
    	infile >> address;
    	infile >> phone;
    		do
    		{
    			cout << "Name: " << name << endl;
    			cout << "Address: " << address << endl;
    			cout << "Phone: " << phone << endl;
    		
    		}while(!infile.eof());
    	
    		infile.close();	
    	}		
    	cout << '\n' << '\n';
    	}
    	
    	while(choice !=3);
    
    	return 0;
    }

  2. #2
    Code Goddess Prelude's Avatar
    Join Date
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    Posts
    9,796
    As much fun as bug hunting when you don't know anything about the problem is, can you be more specific about what you are having trouble with? A better description of your "sequential records" would help as well. I can think of a good number of completely different definitions and implementations for "sequential records".
    My best code is written with the delete key.

  3. #3
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    Join Date
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    9
    we are tring to have a user input a series of information and have it right to a file, then show that file and the records in it. I can not get the records to display the correct way. They are bundled together when i display them.

  4. #4
    Code Goddess Prelude's Avatar
    Join Date
    Sep 2001
    Posts
    9,796
    Is this what you are trying to do?
    Code:
    #include <iostream>
    #include <fstream>
    #include <string>
    
    using namespace std;
    
    struct record {
      string name;
      string address;
      string phone;
    };
    
    bool interactive_fill_rec ( record& rec )
    {
      /* No input validation done */
      cout<<"Name: ";
      if ( !getline ( cin, rec.name ) )
        return false;
      cout<<"Address: ";
      if ( !getline ( cin, rec.address ) )
        return false;
      cout<<"Phone number: ";
      if ( !getline ( cin, rec.phone ) )
        return false;
    
      return true;
    }
    
    bool fill_rec ( record& rec, istream& in )
    {
      getline ( in, rec.name );
      getline ( in, rec.address );
      getline ( in, rec.phone );
      if ( !in )
        return false;
      else
        return true;
    }
    
    void write_rec ( record& rec, ostream& out )
    {
      out<< rec.name <<"\n"
         << rec.address <<"\n"
         << rec.phone <<"\n"<<endl;
    }
    
    int main()
    {
      record rec;
      ofstream out ( "test.txt" );
    
      while ( interactive_fill_rec ( rec ) )
        write_rec ( rec, out );
      out.close();
      ifstream in ( "test.txt" );
      while ( fill_rec ( rec, in ) )
        write_rec ( rec, cout );
    }
    My best code is written with the delete key.

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