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City to zip program help please

paulmaywald (22)
I need help i do not know how to enter the zip and have it display the city vice versa can someone please help me with this?

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

    int displayMenu ();
	void addRecords ();
	void zip ();
	void city ();

int main()
{
	int menu = 0;

	menu = displayMenu();

	while (menu != 4)
	{
		if(menu == 1)
			addRecords();
		else if (menu == 2)
			zip();
		else if (menu == 3)
			city();
		else
			cout << "Invalid menu choice..." << endl;

		menu = displayMenu();

	}


	system("pause");
	return 0;
}

int displayMenu()
{
	int choice = 0;

	cout <<"options"<<endl;
	cout <<"1 add city/zip"<<endl;
	cout <<"2 display zip"<<endl;
	cout <<"3 display city"<<endl;
	cout <<"4 exit program"<<endl;

	cout << "Enter menu option: ";
	cin >> choice;
	cin.ignore(1);
	return choice;
}

void addRecords()
{
	string zip = "";
	string city = "";

	ofstream outFile;
	outFile.open("zipcity.txt", ios::app);

	if (outFile.is_open())
	{
		cout << "Enter zip code (4 to stop): ";
		getline(cin, zip);
		while (zip != "4")
		{ 
			cout << "Enter city: ";
			getline(cin, city);
			cin.ignore();
			outFile << zip << '#' << city << endl;
			cout << "Enter zip (4 to stop): ";
			getline(cin, zip);
		}

		outFile.close();
	} 
	else
		cout << "File could not be opened." << endl;
}

void city()
{
	string input = "";
	string zip = "";
	string city = "";
	bool found = false;

	ifstream inFile;
	inFile.open("zipcity.txt", ios::in);

	if (inFile.is_open())
	{
		cout << "Enter city: ";
		cin >> city;
		while (!inFile.eof() && !found) 
		{

				getline(inFile, input);

		} 

		inFile.close();

	}
	else 
		cout << "File could not be opened." << endl;

}

void zip()
{
	string input = "";
	string zip = "";
	string city = "";
	bool found = false;

	ifstream inFile;
	inFile.open("zipcity.txt", ios::in);

	if (inFile.is_open())
	{
		cout << "Enter zip code: ";
		cin >> zip;
		while (!inFile.eof() && !found) 
		{

				getline(inFile, input);

		} 

		inFile.close();

	}
	else 
		cout << "File could not be opened." << endl;

}
Last edited on
AbstractionAnon (6954)
At lines 98 and 127 you have read a line of text from the data file into the string variable input. Now you just need to parse apart that lne of text.

A stringstream is the usual way to do this.
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  stringstream ss(input);  // create a stream from the input line
  string f_zip;                   // zip code from file
  getline (ss, f_zip, '#');   // read the zip from the current line
  getline (ss, city);           // read the city from the file 
  if (f_zip == zip) 
  { found = true;
     cout << "The city for that zip is: " << city << endl;
  }

City to zip is essentially the same, except you're comparing the city name.

Please don't post the same question in multiple forums:
http://www.cplusplus.com/forum/general/128647/

Last edited on
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